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Title: Measurement of the $$\mathrm{ t \bar{t} }$$ production cross section in the $$\mathrm{ e \mu }$$ channel in proton-proton collisions at $$\sqrt{s} =$$ 7 and 8 TeV

Abstract

The inclusive cross section for top quark pair production is measured in proton-proton collisions at √s = 7 and 8 TeV, corresponding to 5.0 and 19.7 fb–1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 ± 2.1 (stat)+4.5-4.0 (syst) ± 3.8 (lumi) pb at √s = 7 TeV, and 244.9 ± 1.4 (stat)+6.3-5.5 (syst) ± 6.4 (lumi) pb at √s = 8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173.8+1.7-1.8 GeV. Furthermore, the data at √s = 8 TeV are also used to set limits, for two neutralino mass values, on themore » pair production of supersymmetric top squarks with masses close to the top quark mass.« less

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1287381
Report Number(s):
FERMILAB-PUB-16-104-CMS; CMS-TOP-13-004; CERN-EP-2016-044; arXiv:1603.02303
Journal ID: ISSN 1029-8479; 1426692
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Hadron-Hadron scattering (experiments); top physics

Citation Formats

Khachatryan, Vardan. Measurement of the $\mathrm{ t \bar{t} }$ production cross section in the $\mathrm{ e \mu }$ channel in proton-proton collisions at $\sqrt{s} =$ 7 and 8 TeV. United States: N. p., 2016. Web. https://doi.org/10.1007/JHEP08(2016)029.
Khachatryan, Vardan. Measurement of the $\mathrm{ t \bar{t} }$ production cross section in the $\mathrm{ e \mu }$ channel in proton-proton collisions at $\sqrt{s} =$ 7 and 8 TeV. United States. https://doi.org/10.1007/JHEP08(2016)029
Khachatryan, Vardan. Wed . "Measurement of the $\mathrm{ t \bar{t} }$ production cross section in the $\mathrm{ e \mu }$ channel in proton-proton collisions at $\sqrt{s} =$ 7 and 8 TeV". United States. https://doi.org/10.1007/JHEP08(2016)029. https://www.osti.gov/servlets/purl/1287381.
@article{osti_1287381,
title = {Measurement of the $\mathrm{ t \bar{t} }$ production cross section in the $\mathrm{ e \mu }$ channel in proton-proton collisions at $\sqrt{s} =$ 7 and 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {The inclusive cross section for top quark pair production is measured in proton-proton collisions at √s = 7 and 8 TeV, corresponding to 5.0 and 19.7 fb–1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 ± 2.1 (stat)+4.5-4.0 (syst) ± 3.8 (lumi) pb at √s = 7 TeV, and 244.9 ± 1.4 (stat)+6.3-5.5 (syst) ± 6.4 (lumi) pb at √s = 8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173.8+1.7-1.8 GeV. Furthermore, the data at √s = 8 TeV are also used to set limits, for two neutralino mass values, on the pair production of supersymmetric top squarks with masses close to the top quark mass.},
doi = {10.1007/JHEP08(2016)029},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2016,
place = {United States},
year = {2016},
month = {8}
}

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Figures / Tables:

Figure 1. Figure 1.: Distributions of pT (left) and η (right) of the leading (top) and subleading (bottom) leptons, after the eµ selection, for the 7 TeV data. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the total uncertainty in the sum of themore » predicted yields. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid gray band represents the contribution from the statistical uncertainty in the MC simulation. The contributing systematic uncertainties are discussed in section 7.« less

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font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2015-06-01">June 2015</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aad, G.; Abbott, B.; Abdallah, J.</span> </li> <li> Physical Review D, Vol. 91, Issue 11</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/PhysRevD.91.112013" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/PhysRevD.91.112013<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1209/0295-5075/96/21002" target="_blank" rel="noopener noreferrer" class="name">First measurement of the total proton-proton cross-section at the LHC energy of \chem{\sqrt{s} = 7\,TeV}<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-10-01">October 2011</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Antchev, G.; Aspell, P.; Atanassov, I.</span> </li> <li> EPL (Europhysics Letters), Vol. 96, Issue 2</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1209/0295-5075/96/21002" class="text-muted" target="_blank" rel="noopener noreferrer">10.1209/0295-5075/96/21002<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-011-1577-6" target="_blank" rel="noopener noreferrer" class="name">Measurement of the top quark-pair production cross section with ATLAS in pp collisions at $\sqrt{s}=7$  TeV<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-03-01">March 2011</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aad, G.; Abbott, B.; Abdallah, J.</span> </li> <li> The European Physical Journal C, Vol. 71, Issue 3</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-011-1577-6" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-011-1577-6<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/j.physletb.2011.12.055" target="_blank" rel="noopener noreferrer" class="name">Measurement of the top quark pair production cross section in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> in dilepton final states with ATLAS<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2012-02-01">February 2012</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aad, G.; Abbott, B.; Abdallah, J.</span> </li> <li> Physics Letters B, Vol. 707, Issue 5</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1016/j.physletb.2011.12.055" class="text-muted" target="_blank" rel="noopener noreferrer">10.1016/j.physletb.2011.12.055<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-011-1557-x" target="_blank" rel="noopener noreferrer" class="name">A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-02-01">February 2011</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Abdallah, J.; Abreu, P.; Adam, W.</span> </li> <li> The European Physical Journal C, Vol. 71, Issue 2</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-011-1557-x" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-011-1557-x<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1126-6708/2009/12/041" target="_blank" rel="noopener noreferrer" class="name">Soft-gluon resummation for squark and gluino hadroproduction<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2009-12-01">December 2009</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Beenakker, Wim; Brensing, Silja; Krämer, Michael</span> </li> <li> Journal of High Energy Physics, Vol. 2009, Issue 12</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1126-6708/2009/12/041" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1126-6708/2009/12/041<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1007/JHEP07(2012)052" target="_blank" rel="noopener noreferrer" class="name">$$ t\overline t {W^{\pm }} $$ production and decay at NLO<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2012-07-01">July 2012</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Campbell, John M.; Ellis, R. Keith</span> </li> <li> Journal of High Energy Physics, Vol. 2012, Issue 7</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1007/JHEP07(2012)052" class="text-muted" target="_blank" rel="noopener noreferrer">10.1007/JHEP07(2012)052<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-011-1547-z" target="_blank" rel="noopener noreferrer" class="name">Single-top Wt-channel production matched with parton showers using the POWHEG method<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-02-01">February 2011</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Re, Emanuele</span> </li> <li> The European Physical Journal C, Vol. 71, Issue 2</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-011-1547-z" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-011-1547-z<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1748-0221/10/06/P06005" target="_blank" rel="noopener noreferrer" class="name">Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √ <em>s</em> = 8 TeV<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2015-06-01">June 2015</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> , </span> </li> <li> Journal of Instrumentation, Vol. 10, Issue 06, p. P06005-P06005</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1748-0221/10/06/P06005" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1748-0221/10/06/P06005<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1748-0221/7/10/P10002" target="_blank" rel="noopener noreferrer" class="name">Performance of CMS muon reconstruction in pp collision events at <strong>√s = 7</strong> TeV<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2012-10-01">October 2012</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> collaboration, The CMS</span> </li> <li> Journal of Instrumentation, Vol. 7, Issue 10</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1748-0221/7/10/P10002" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1748-0221/7/10/P10002<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1748-0221/6/11/P11002" target="_blank" rel="noopener noreferrer" class="name">Determination of jet energy calibration and transverse momentum resolution in CMS<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-11-01">November 2011</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> collaboration, The CMS</span> </li> <li> Journal of Instrumentation, Vol. 6, Issue 11</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1748-0221/6/11/P11002" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1748-0221/6/11/P11002<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1748-0221/8/04/P04013" target="_blank" rel="noopener noreferrer" class="name">Identification of b-quark jets with the CMS experiment<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2013-04-01">April 2013</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> collaboration, The CMS</span> </li> <li> Journal of Instrumentation, Vol. 8, Issue 04</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1748-0221/8/04/P04013" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1748-0221/8/04/P04013<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> </div> <div class="pagination-container small"> <a class="pure-button prev page" href="#" rel="prev"><span class="fa fa-angle-left"></span></a><ul class="pagination d-inline-block" style="padding-left:.2em;"></ul><a class="pure-button next page" href="#" rel="next"><span class="fa fa-angle-right"></span></a> </div> </div> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a href="" class="reference-type-filter tab-nav" data-tab="biblio-references" data-filter="type" data-pattern="*"><span class="fa fa-angle-right"></span> All References</a></li> <li class="small" style="margin-left:.75em; 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float:none;">[ × clear filter / sort ]</a> </div> </form> </div> </div> </div> </section> <section id="biblio-citations" class="tab-content tab-content-sec osti-curated" data-tab="biblio"> <div class="row"> <div class="col-sm-9 order-sm-9"> <div class="padding"> <p class="lead text-muted" style="font-size: 18px; margin-top:0px;">Works referencing / citing this record:</p> <div class="list"> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1361-6471/44/6/063001" target="_blank" rel="noopener noreferrer" class="name">Top-quark physics at the Large Hadron Collider<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-05-05">May 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Cristinziani, Markus; Mulders, Martijn</span> </li> <li> Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 6</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1361-6471/44/6/063001" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1361-6471/44/6/063001<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1748-0221/15/01/p01009" target="_blank" rel="noopener noreferrer" class="name">Opportunities and challenges of Standard Model production cross section measurements in proton-proton collisions at √ <em>s</em> =8 TeV using CMS Open Data<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2020-01-01">January 2020</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Apyan, A.; Cuozzo, W.; Klute, M.</span> </li> <li> Journal of Instrumentation, Vol. 15, Issue 01</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1748-0221/15/01/p01009" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1748-0221/15/01/p01009<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevd.94.092003" target="_blank" rel="noopener noreferrer" class="name">Measurement of top quark pair differential cross sections in the dilepton channel in <math display="inline"> <mi>p</mi> <mi>p</mi> </math> collisions at <math display="inline"> <msqrt> <mi>s</mi> </msqrt> <mo>=</mo> <mn>7</mn> </math> and 8 TeV with ATLAS<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2016-11-01">November 2016</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aaboud, M.; Aad, G.; Abbott, B.</span> </li> <li> Physical Review D, Vol. 94, Issue 9</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevd.94.092003" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevd.94.092003<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevd.94.112009" target="_blank" rel="noopener noreferrer" class="name">Searches for <math display="inline"> <mi>R</mi> </math> -parity-violating supersymmetry in <math display="inline"> <mrow> <mi>p</mi> <mi>p</mi> </mrow> </math> collisions at <math display="inline"> <mrow> <msqrt> <mrow> <mi>s</mi> </mrow> </msqrt> <mo>=</mo> <mn>8</mn> <mtext> </mtext> <mtext> </mtext> <mi>TeV</mi> </mrow> </math> in final states with 0–4 leptons<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2016-12-01">December 2016</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.</span> </li> <li> Physical Review D, Vol. 94, Issue 11</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevd.94.112009" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevd.94.112009<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevd.96.014011" target="_blank" rel="noopener noreferrer" class="name">Parton distribution functions, <math display="inline"> <msub> <mi>α</mi> <mi>s</mi> </msub> </math> , and heavy-quark masses for LHC Run II<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-07-01">July 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Alekhin, S.; Blümlein, J.; Moch, S.</span> </li> <li> Physical Review D, Vol. 96, Issue 1</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevd.96.014011" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevd.96.014011<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevd.96.072004" target="_blank" rel="noopener noreferrer" class="name">Search for Higgs boson pair production in the <math display="inline"> <mi>b</mi> <mi>b</mi> <mi>τ</mi> <mi>τ</mi> </math> final state in proton-proton collisions at <math display="inline"> <msqrt> <mo stretchy="false">(</mo> </msqrt> <mi>s</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mn>8</mn> <mtext> </mtext> <mtext> </mtext> <mi>TeV</mi> </math><span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-10-01">October 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Sirunyan, A. M.; Tumasyan, A.; Adam, W.</span> </li> <li> Physical Review D, Vol. 96, Issue 7</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevd.96.072004" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevd.96.072004<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevd.96.075022" target="_blank" rel="noopener noreferrer" class="name">Constraints on top quark nonstandard interactions from Higgs boson and <math display="inline"> <mi>t</mi> <mover accent="true"> <mi>t</mi> <mo stretchy="false">¯</mo> </mover> </math> production cross sections<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-10-01">October 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Barducci, D.; Fabbrichesi, M.; Tonero, A.</span> </li> <li> Physical Review D, Vol. 96, Issue 7</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevd.96.075022" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevd.96.075022<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1103/physrevlett.124.202001" target="_blank" rel="noopener noreferrer" class="name">Measurement of the Jet Mass Distribution and Top Quark Mass in Hadronic Decays of Boosted Top Quarks in <math display="inline"> <mrow> <mi>p</mi> <mi>p</mi> </mrow> </math> Collisions at <math display="inline"> <mrow> <msqrt> <mrow> <mi>s</mi> </mrow> </msqrt> <mo>=</mo> <mn>13</mn> <mtext> </mtext> <mtext> </mtext> <mi>TeV</mi> </mrow> </math><span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2020-05-01">May 2020</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Sirunyan, A. M.; Tumasyan, A.; Adam, W.</span> </li> <li> Physical Review Letters, Vol. 124, Issue 20</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1103/physrevlett.124.202001" class="text-muted" target="_blank" rel="noopener noreferrer">10.1103/physrevlett.124.202001<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-017-4718-8" target="_blank" rel="noopener noreferrer" class="name">Measurement of the $$\mathrm{t}\overline{\mathrm{t}} $$ t t ¯ production cross section using events in the $$\mathrm {e}\mu $$ e μ final state in pp collisions at $$\sqrt{s}=13\,\text {TeV} $$ s = 13 TeV<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-03-01">March 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.</span> </li> <li> The European Physical Journal C, Vol. 77, Issue 3</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-017-4718-8" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-017-4718-8<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-017-4853-2" target="_blank" rel="noopener noreferrer" class="name">Searches for pair production of third-generation squarks in $$\sqrt{s}=13$$ s = 13 $$\,\text {TeV}$$ TeV pp collisions<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-05-01">May 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Sirunyan, A. M.; Tumasyan, A.; Adam, W.</span> </li> <li> The European Physical Journal C, Vol. 77, Issue 5</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-017-4853-2" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-017-4853-2<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-017-5030-3" target="_blank" rel="noopener noreferrer" class="name">Measurement of the jet mass in highly boosted $${\mathrm{t}}\overline{\mathrm{t}}$$ t t ¯ events from pp collisions at $$\sqrt{s}=8$$ s = 8 $$\,\text {TeV}$$ TeV<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-07-01">July 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Sirunyan, A. M.; Tumasyan, A.; Adam, W.</span> </li> <li> The European Physical Journal C, Vol. 77, Issue 7</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-017-5030-3" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-017-5030-3<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-017-5349-9" target="_blank" rel="noopener noreferrer" class="name">Measurement of lepton differential distributions and the top quark mass in $$t\bar{t}$$ t t ¯ production in pp collisions at $$\sqrt{s}=8$$ s = 8  TeV with the ATLAS detector<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2017-11-01">November 2017</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aaboud, M.; Aad, G.; Abbott, B.</span> </li> <li> The European Physical Journal C, Vol. 77, Issue 11</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-017-5349-9" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-017-5349-9<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-019-6863-8" target="_blank" rel="noopener noreferrer" class="name">Measurement of the $${\mathrm {t}\overline{\mathrm {t}}}$$ t t ¯ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at $$\sqrt{s}=13\,\text {Te}\text {V} $$ s = 13 Te<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2019-04-29">April 2019</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Sirunyan, A. M.; Tumasyan, A.; Adam, W.</span> </li> <li> The European Physical Journal C, Vol. 79, Issue 5</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-019-6863-8" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-019-6863-8<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1140/epjc/s10052-020-7907-9" target="_blank" rel="noopener noreferrer" class="name">Measurement of the $$t\bar{t}$$ production cross-section and lepton differential distributions in $$e\mu $$ dilepton events from pp collisions at $$\sqrt{s}=13\,\text {TeV}$$ with the ATLAS detector<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2020-06-01">June 2020</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Aad, G.; Abbott, B.; Abbott, D. C.</span> </li> <li> The European Physical Journal C, Vol. 80, Issue 6</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1140/epjc/s10052-020-7907-9" class="text-muted" target="_blank" rel="noopener noreferrer">10.1140/epjc/s10052-020-7907-9<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.21468/scipostphys.5.1.008" target="_blank" rel="noopener noreferrer" class="name">Illuminating the photon content of the proton within a global PDF analysis<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2018-01-01">January 2018</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Bertone, Valerio; Carrazza, Stefano; Hartland, Nathan</span> </li> <li> SciPost Physics, Vol. 5, Issue 1</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.21468/scipostphys.5.1.008" class="text-muted" target="_blank" rel="noopener noreferrer">10.21468/scipostphys.5.1.008<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> </div> <div class="pagination-container small"> <a class="pure-button prev page" href="#" rel="prev"><span class="fa fa-angle-left"></span></a><ul class="pagination d-inline-block" style="padding-left:.2em;"></ul><a class="pure-button next page" href="#" rel="next"><span class="fa fa-angle-right"></span></a> </div> </div> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a href="" class="reference-type-filter tab-nav" data-filter="type" data-pattern="*"><span class="fa fa-angle-right"></span> All Cited By</a></li> <li class="small" style="margin-left:.75em; text-transform:capitalize;"><a href="" class="reference-type-filter tab-nav" data-filter="type" data-pattern="journal"><span class="fa fa-angle-right"></span> journal<small class="text-muted"> (15)</small></a></li> </ul> <div style="margin-top:2em;"> <form class="pure-form small text-muted citation-search"> <label for="citation-search-text" class="sr-only">Search</label> <input class="search form-control pure-input-1" id="citation-search-text" placeholder="Search" style="margin-bottom:10px;" /> <fieldset> <div style="margin-left:1em; font-weight:normal; line-height: 1.6em;"><input type="radio" class="sort" name="references-sort" data-sort="name" style="position:relative;top:2px;" id="citation-search-sort-name"><label for="citation-search-sort-name" style="margin-left: .3em;">Sort by title</label></div> <div style="margin-left:1em; font-weight:normal; line-height: 1.6em;"><input type="radio" class="sort" name="references-sort" data-sort="date" data-order="desc" style="position:relative;top:2px;" id="citation-search-sort-date"><label for="citation-search-sort-date" style="margin-left: .3em;">Sort by date</label></div> </fieldset> <div class="text-left" style="margin-left:1em;"> <a href="" class="filter-clear clearfix" title="Clear filter / sort" style="font-weight:normal; float:none;">[ × clear filter / sort ]</a> </div> </form> </div> </div> </div> </section> <section id="biblio-images" class="tab-content tab-content-sec osti-curated" data-tab="biblio"> <div class="row"> <div class="col-sm-9 order-sm-9"> <div class="padding"> <p class="lead text-muted" style="font-size: 18px; margin-top:0px;"><span id="image-type-label">Figures / Tables</span> found in this record:</p> <div class="list clearfix"> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 8" data-order="1" data-imgid="1287381-img75750" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075750.png" data-title="Figure 1." data-desc="Distributions of pT (left) and η (right) of the leading (top) and subleading (bottom) leptons, after the eµ selection, for the 7 TeV data. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the total uncertainty in the sum of the predicted yields. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid gray band represents the contribution from the statistical uncertainty in the MC simulation. The contributing systematic uncertainties are discussed in section 7." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75750" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75750"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 1. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 8)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075750.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 9" data-order="2" data-imgid="1287381-img75752" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075752.png" data-title="Figure 2." data-desc="Distributions of pT (left) and η (right) of the leading (top) and subleading (bottom) leptons, after the eμ selection, for the 8 TeV data. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the total uncertainty in the sum of the predicted yields. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation. The contributing systematic uncertainties are discussed in section 7." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75752" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75752"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 2. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 9)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075752.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 9" data-order="3" data-imgid="1287381-img75754" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075754.png" data-title="Figure 3." data-desc="Number of b-tagged jets after the eμ selection for 7 TeV (left) and 8 TeV (right). The hatched bands correspond to the total uncertainty in the sum of the predicted yields. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation.The contributing systematic uncertainties are discussed in section 7." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75754" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75754"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 3. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 9)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075754.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 12" data-order="4" data-imgid="1287381-img75755" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075755.png" data-title="Figure 4." data-desc="Total event yield for zero additional non-b-tagged jets (left) and pT of the non-b-tagged jet with the lowest pT in the event (right) for events with one, two, and at least three additional non-b-tagged jets, and with zero or more than two (top row), one (middle row), and two (bottom row) b-tagged jets at √s = 7 TeV. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the sum of statistical and systematic uncertainties in the event yield for the sum of signal and background predictions. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75755" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75755"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 4. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 12)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075755.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 13" data-order="5" data-imgid="1287381-img75758" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075758.png" data-title="Figure 5." data-desc="Total event yield for zero additional non-b-tagged jets (left) and pT of the additional non-b-tagged jet with the lowest pT in the event (right) for events with one, two, and at least three additional non-b-tagged jets, and with zero or more than two (top row), one (middle row), and two(bottom row) b-tagged jets at √s = 8 TeV. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the sum of statistical and systematic uncertainties in the event yield for the sum of signal and background predictions. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75758" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75758"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 5. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 13)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075758.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 14" data-order="6" data-imgid="1287381-img75764" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075764.png" data-title="Figure 6." data-desc="Fitted total event yield for zero additional non-b-tagged jets (left) and pT of the non-b-tagged jet with the lowest pT in the event (right) for events with one, two, and at least three additional non-b-tagged jets, and with zero or more than two (top row), one (middle row), and two (bottom row) b-tagged jets at √s = 7 TeV. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the sum of statistical and systematic uncertainties in the event yield for the sum of signal and background predictions after the fit, and include all correlations.The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75764" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75764"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 6. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 14)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075764.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 15" data-order="7" data-imgid="1287381-img75765" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075765.png" data-title="Figure 7." data-desc="Fitted total event yield for zero additional non-b-tagged jets (left) and pT of the non-b-tagged jet with the lowest pT in the event (right) for events with one, two, and at least three additional non-b-tagged jets, and with zero or more than two (top row), one (middle row), and two (bottom row) b-tagged jets at √s = 8 TeV. The last bin of the pT distributions includes the overflow events. The hatched bands correspond to the sum of statistical and systematic uncertainties in the event yield for the sum of signal and background predictions after the fit, and include all correlations. The ratios of data to the sum of the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75765" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75765"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 7. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 15)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075765.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 16" data-order="8" data-imgid="1287381-img75769" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075769.png" data-title="Figure 8." data-desc="Comparison of the b jet multiplicity distributions in the eμ channel for 7 (left) and 8 (right) TeV between the data and simulation for events fulfilling the eμ selection and the requirement of having at least two jets. The hatched bands correspond to the sum of statistical and systematic uncertainties in the event yield for the signal and background predictions. The ratios of data to the predicted yields are shown at the bottom of each plot. Here, an additional solid grey band represents the contribution from the statistical uncertainty in the MC simulation." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75769" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75769"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 8. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 16)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075769.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 16" data-order="9" data-imgid="1287381-img75766" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075766.png" data-title="Table 1." data-desc="Number of selected events for the event counting method for the 7 and 8 TeV data sets. The results are given for the individual sources of background, tt¯ signal, and data. The two uncertainties quoted correspond to the statistical and systematic components (cf. section 7), respectively." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75766" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75766"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 1. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 16)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075766.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 20" data-order="10" data-imgid="1287381-img75770" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075770.png" data-title="Table 2." data-desc="Assumed correlations ρ between systematic uncertainties for the 7 and 8 TeV data sets. If ρ = 0, the uncertainties are treated as uncorrelated between the two sets." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75770" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75770"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 2. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 20)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075770.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 21" data-order="11" data-imgid="1287381-img75773" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075773.png" data-title="Table 3." data-desc="Illustrative summary of the individual contributions to the total uncertainty in the visible tt¯ cross section measurements." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75773" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75773"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 3. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 21)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075773.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 22" data-order="12" data-imgid="1287381-img75776" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075776.png" data-title="Table 4." data-desc="Individual contributions to the systematic uncertainty in the total tt¯ cross section measurements. The total systematic uncertainties in the fiducial cross sections σvistt¯ are given in the row "Total (visible)", and those in the full phase space cross section σtt¯ in the row "Total"." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75776" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75776"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 4. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 22)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075776.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 25" data-order="13" data-imgid="1287381-img75786" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075786.png" data-title="Figure 9." data-desc="Likelihood for the predicted dependence of the tt¯ production cross section on the top quark pole mass for 7 and 8 TeV determined with TOP++, employing the NNPDF3.0 PDF set. The measured dependences on the mass are given by the dashed lines, their 1σ-uncertainties are represented by the dotted lines. The extracted mass at each value of psis indicated by a black point, with its 1σ-uncertainty constructed from the continuous contour, corresponding to –2Δlog(LpredLexp) = 1." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75786" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75786"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 9. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 25)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075786.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 25" data-order="14" data-imgid="1287381-img75777" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075777.png" data-title="Table 5." data-desc="Top quark pole mass at NNLO+NNLL extracted by comparing the measured tt¯ production cross section at 7 and 8 TeV with predictions employing different PDF sets." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75777" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75777"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 5. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 25)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075777.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 25" data-order="15" data-imgid="1287381-img75781" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075781.png" data-title="Table 6." data-desc="Combined top quark pole mass at NNLO+NNLL extracted by comparing the measured tt¯ production cross section with predictions employing different PDF sets." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75781" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75781"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Table 6. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 25)</small><span class="d-none type">table</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075781.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 26" data-order="16" data-imgid="1287381-img75789" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075789.png" data-title="Figure 10." data-desc="Diagram displaying the top squark pair production at the LHC in the decay mode where each top squark decays to a top quark and a neutralino χ̃01." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75789" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75789"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 10. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 26)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075789.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> <div class="col-sm-3 float-left biblio-image-tile" data-apporder="p. 27" data-order="17" data-imgid="1287381-img75792" data-imgsrc="/biblio/1287381/image/000/286/0002863/1/0075792.png" data-title="Figure 11." data-desc="Expected and observed limits at 95% CL on the signal strength (see text) as a function of the top squark mass for neutralino masses of 1 GeV (left) and 12.5 GeV (right). The widest bands show the 68% and 95% CL ranges of the expected limit. The narrowest band quantifies the impact of the theoretical uncertainty in the cross section of the SUSY signal on the observed limit." data-ostiid="1287381" style="padding-bottom: 2em; border-bottom: 1px solid #ddd;"> <a href="#img" class="biblio-image-tile-a ga-click-event" data-imgid="1287381-img75792" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1287381-img75792"> <div style=" padding: .5em; border: 1px solid #eee; background-color: #fff; "> <small class="name">Figure 11. <small class="pull-right" style="margin-right: .5em;color:#999;top: 3px;position: relative;">(p. 27)</small><span class="d-none type">figure</span></small> <div style=" background-image:url('/biblio/1287381/image/000/286/0002863/1/t0075792.png'); background-repeat:no-repeat; background-size:contain; background-position-x: center; width: 100%; height: 175px; margin-top:.5em; "> </div> </div> </a> </div> </div> <div class="pagination-container small"> <a class="pure-button prev page" href="#" rel="prev"><span class="fa fa-angle-left"></span></a><ul class="pagination d-inline-block" style="padding-left:.2em;"></ul><a class="pure-button next page" href="#" rel="next"><span class="fa fa-angle-right"></span></a> </div> </div> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a href="" class="reference-type-filter tab-nav" data-tab="biblio-images" data-filter="type" data-pattern="*"><span class="fa fa-angle-right"></span> All Images</a></li> <li class="small" style="margin-left:.75em; 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padding:1em;"> <em>Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.</em> </div> </div> </div> </section> <section id="biblio-related" class="tab-content tab-content-sec osti-curated" data-tab="biblio"> <div class="row"> <div class="col-sm-9 order-sm-9"> <section id="biblio-similar" class="tab-content tab-content-sec active" data-tab="related"> <div class="padding"> <p class="lead text-muted" style="font-size: 18px; margin-top:0px;">Similar Records in DOE PAGES and OSTI.GOV collections:</p> <aside> <ul class="item-list" itemscope itemtype="http://schema.org/ItemList" style="padding-left:0; list-style-type: none;"> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="0" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1650100-measurement-bar-production-cross-section-lepton-differential-distributions-mu-dilepton-events-from-pp-collisions-sqrt-text-tev-atlas-detector" itemprop="url">Measurement of the $$t\bar{t}$$ production cross-section and lepton differential distributions in $$e\mu$$ dilepton events from pp collisions at $$\sqrt{s}=13\,\text {TeV}$$ with the ATLAS detector</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Aad, G.</span> ; <span class="author">Abbott, B.</span> ; <span class="author">Abbott, D. C.</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - European Physical Journal. C, Particles and Fields</span> </span> </div> <div class="abstract">The inclusive top quark pair (<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> $$t\bar{t}$$) production cross-section $$σ_{t\bar{t}}$$ has been measured in proton–proton collisions at $$\sqrt{s}$$=13 TeV, using 36.1 fb<sup>-1</sup> of data collected in 2015–2016 by the ATLAS experiment at the LHC. Using events with an opposite-charge eμ pair and b-tagged jets, the cross-section is measured to be: $$σ_{t\bar{t}}$$=$$\mathrm{826.4±3.6(stat)±11.5(syst)±15.7(lumi)±1.9(beam)pb}$$,where the uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, the integrated luminosity, and the LHC beam energy, giving a total uncertainty of 2.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. It is used to determine the top quark pole mass via the dependence of the predicted cross-section on $$m_t^{pole}$$, giving $$m_t^{pole}$$=$$173.1_{-2.1}^{+2.0} \mathrm{GeV}$$. It is also combined with measurements at $$\sqrt{s}$$ = 7 TeV and $$\sqrt{s}$$ = 8 TeV to derive ratios and double ratios of tt¯ and Z cross-sections at different energies. The same event sample is used to measure absolute and normalised differential cross-sections as functions of single-lepton and dilepton kinematic variables, and the results are compared with predictions from various Monte Carlo event generators.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1140/epjc/s10052-020-7907-9" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1650100" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1140/epjc/s10052-020-7907-9</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1650100" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1650100" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="2" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1304161-measurement-production-cross-section-using-events-tagged-jets-pp-collisions-tev-atlas-detector" itemprop="url">Measurement of the <math> <mi> t </mi> <mover> <mrow> <mi> t </mi> </mrow> <mrow> <mo> ¯ </mo> </mrow> </mover> </math> production cross-section using eμ events with b-tagged jets in pp collisions at <math> <msqrt> <mi> s </mi> </msqrt> <mo> = </mo> <mn> 13 </mn> <mspace></mspace> <mtext> TeV </mtext> </math> with the ATLAS detector</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Aaboud, M.</span> ; <span class="author">Aad, G.</span> ; <span class="author">Abbott, B.</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Physics Letters B</span> </span> </div> <div class="abstract">This paper describes a measurement of the inclusive top quark pair production cross-section (σ t<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> $$\bar{t}$$ ) with a data sample of 3.2 fb <sup>-1</sup> of proton-proton collisions at a centre-of-mass energy of √s=13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron-muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σ t$$\bar{t}$$ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σ t$$\bar{t}$$ = 818±8 (stat)± 27 (syst)±19 (lumi)± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <span class="fa fa-book text-muted" aria-hidden="true"></span> Cited by 6<div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1016/j.physletb.2016.08.019" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1304161" data-product-type="Journal Article" data-product-subtype="PA" >https://doi.org/10.1016/j.physletb.2016.08.019</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="5" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1328728-measurement-integrated-differential-production-cross-sections-high-top-quarks-collisions-tev" itemprop="url">Measurement of the integrated and differential <math> <mi> t </mi> <mover> <mi> t </mi> <mo> ¯ </mo> </mover> </math> production cross sections for high- <math> <mrow> <msub> <mrow> <mi> p </mi> </mrow> <mrow> <mi mathvariant="normal"> T </mi> </mrow> </msub> </mrow> </math> top quarks in <math> <mi> p </mi> <mi> p </mi> </math> collisions at <math> <mrow> <msqrt> <mrow> <mi> s </mi> </mrow> </msqrt> <mo> = </mo> <mn> 8 </mn> <mtext>   </mtext> <mtext>   </mtext> <mi> TeV </mi> </mrow> </math></a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Khachatryan, V.</span> ; <span class="author">Sirunyan, A. M.</span> ; <span class="author">Tumasyan, A.</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Physical Review D</span> </span> </div> <div class="abstract">The cross section for pair production of top quarks (<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> $$t\bar{t}$$) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with √s=8 TeV in data corresponding to an integrated luminosity of 19.7 fb<sup>-1</sup>. The measurement is performed using lepton+jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark p<sub>T</sub> and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be σ$$t\bar{t}$$ = 0.499 ± 0.035(stat+syst) ± 0.095(theo) ± 0.013(lumi) pb for top quark p<sub>T</sub> > 400 GeV. The parton-level measurement is σ$$t\bar{t}$$ = 1.44 ± 0.10(stat+syst) ± 0.29(theo) ± 0.04(lumi) pb. Lastly, the integrated and differential cross section results are compared to predictions from several event generators.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <span class="fa fa-book text-muted" aria-hidden="true"></span> Cited by 3<div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1103/PhysRevD.94.072002" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1328728" data-product-type="Journal Article" data-product-subtype="PA" >https://doi.org/10.1103/PhysRevD.94.072002</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="6" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1352046-measurement-mathrm-overline-mathrm-production-cross-section-using-events-one-lepton-least-one-jet-pp-collisions-sqrt-tev" itemprop="url">Measurement of the $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section using events with one lepton and at least one jet in pp collisions at $$ \sqrt{s}=13 $$ TeV</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Sirunyan, A. M.</span> ; <span class="author">Tumasyan, A.</span> ; <span class="author">Adam, W.</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Journal of High Energy Physics (Online)</span> </span> </div> <div class="abstract">A measurement of the tt¯ production cross section at √s = 13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.2 fb<sup>–1</sup>, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be σ<sub>tt¯</sub> = 888 ± 2,(stat) <sup>+26</sup><sub>–28</sub>(syst)±20(lumi) pb, in<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> agreement with the standard model prediction. In conclusion, using the expected dependence of the cross section on the pole mass of the top quark (m<sub>t</sub>), the value of m<sub>t</sub> is found to be 170.6 ± 2.7 GeV.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <span class="fa fa-book text-muted" aria-hidden="true"></span> Cited by 6<div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1007/JHEP09(2017)051" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1352046" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1007/JHEP09(2017)051</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1352046" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1352046" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="7" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1644280-measurement-cross-section-mathrm-overline-mathrm-production-additional-jets-jets-pp-collisions-sqrt-tev" itemprop="url">Measurement of the cross section for $$\mathrm{t}\overline{\mathrm{t}}$$ production with additional jets and b jets in pp collisions at $$\sqrt{s}$$ = 13 TeV</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Sirunyan, A. M.</span> ; <span class="author">Tumasyan, A.</span> ; <span class="author">Adam, W.</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Journal of High Energy Physics (Online)</span> </span> </div> <div class="abstract">Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks \( \left({\sigma}_{\mathrm{t}\overline{\mathrm{t}}\mathrm{b}\overline{\mathrm{b}}}\right) \) and in association with a pair of jets from quarks of any flavor or gluons \( \left({\sigma}_{\mathrm{t}\overline{\mathrm{t}}\mathrm{jj}}\right) \) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb<sup><i>-</i>1</sup>. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are \( {\sigma}_{\mathrm{t}\overline{\mathrm{t}}\mathrm{jj}} \) = 2<i>.</i>36<i>±</i>0<i>.</i>02 (stat)<i>±</i>0<i>.</i>20 (syst) pb and 31<i>.</i>0<i>±</i>0<i>.</i>2 (stat)<i>±</i>2<i>.</i>9 (syst) pb, and for the cross section ratio 0<i>.</i>017 <i>±</i> 0<i>.</i>001 (stat) <i>±</i> 0<i>.</i>001 (syst) and 0<i>.</i>020 <i>±</i> 0<i>.</i>001 (stat) <i>±</i> 0<i>.</i>001 (syst). The values of \( {\sigma}_{\mathrm{t}\overline{\mathrm{t}}\mathrm{b}\overline{\mathrm{b}}} \) are determined from the product of the \( {\sigma}_{\mathrm{t}\overline{\mathrm{t}}\mathrm{jj}} \) and the cross section ratio, obtaining, respectively, 0<i>.</i>040<i>±</i>0<i>.</i>002 (stat)<i>±</i>0<i>.</i>005 (syst) pb and 0<i>.</i>62<i>±</i>0<i>.</i>03 (stat)<i>±</i>0<i>.</i>07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1007/jhep07(2020)125" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1644280" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1007/jhep07(2020)125</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1644280" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1644280" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> </ul> </aside> </div> </section> <section id="biblio-related-works" class="tab-content tab-content-sec" data-tab="related"> <div class="padding"> <p class="lead text-muted" style="font-size: 18px; margin-top:0px;"><span style="text-transform:capitalize;">Other research</span> related to this record:</p> <aside> <div class="list"> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.17182/hepdata.74208" target="_blank" rel="noopener noreferrer" class="name">Measurement of the t-tbar production cross section in the e-mu channel in proton-proton collisions at sqrt(s) = 7 and 8 TeV [Supplementary Data]<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">dataset</span>, <span class="date" data-date="2016-09-23">September 2016</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen</span> </li> <li> HEPData-Supplementary information for journal article at DOI: /JHEP08(2016)029, 3 data tables</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.17182/hepdata.74208" class="text-muted" target="_blank" rel="noopener noreferrer">10.17182/hepdata.74208<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> <li class="text-right"> <em class="text-muted"> This dataset is a supplement to the current record</em> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.17182/hepdata.74208.v1" target="_blank" rel="noopener noreferrer" class="name">Measurement of the t-tbar production cross section in the e-mu channel in proton-proton collisions at $\sqrt{s}$ = 7 and 8 TeV [Supplementary Data]<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; 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