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Title: Erratum: Measurement of the $$t \bar{t}$$ production cross section in the dilepton channel in pp collisions at $$\sqrt{s}$$ = 8 TeV

Abstract

In this study, the top-antitop quark (tt¯) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb –1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239±2 (stat.)±11 (syst.)±6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1151713
Report Number(s):
FERMILAB-PUB-13-604-CMS
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1312.7582
Grant/Contract Number:
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2014; Journal Issue: 2; 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; top physics

Citation Formats

Chatrchyan, Serguei. Erratum: Measurement of the $t \bar{t}$ production cross section in the dilepton channel in pp collisions at $\sqrt{s}$ = 8 TeV. United States: N. p., 2014. Web. doi:10.1007/JHEP02(2014)102.
Chatrchyan, Serguei. Erratum: Measurement of the $t \bar{t}$ production cross section in the dilepton channel in pp collisions at $\sqrt{s}$ = 8 TeV. United States. doi:10.1007/JHEP02(2014)102.
Chatrchyan, Serguei. Wed . "Erratum: Measurement of the $t \bar{t}$ production cross section in the dilepton channel in pp collisions at $\sqrt{s}$ = 8 TeV". United States. doi:10.1007/JHEP02(2014)102. https://www.osti.gov/servlets/purl/1151713.
@article{osti_1151713,
title = {Erratum: Measurement of the $t \bar{t}$ production cross section in the dilepton channel in pp collisions at $\sqrt{s}$ = 8 TeV},
author = {Chatrchyan, Serguei},
abstractNote = {In this study, the top-antitop quark (tt¯) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb–1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239±2 (stat.)±11 (syst.)±6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.},
doi = {10.1007/JHEP02(2014)102},
journal = {Journal of High Energy Physics (Online)},
number = 2,
volume = 2014,
place = {United States},
year = {Wed Feb 05 00:00:00 EST 2014},
month = {Wed Feb 05 00:00:00 EST 2014}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 4works
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  • The t{bar t} production cross section and top quark mass are measured in proton-proton collisions at {radical}s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb{sup -1} collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is {sigma}{sub t{bar t}} = 168 {+-} 18 (stat.) {+-} 14 (syst.) {+-} 7 (lumi.) pb, consistent with predictions from the standard model. The top quarkmore » mass m{sub top} is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m{sub top} = 175.5 {+-} 4.6 (stat.) {+-} 4.6 (syst.) GeV/c{sup 2}.« less
  • The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying τ lepton from the processmore » $$t\bar{t}$$ to (ℓν ) (τν τ) $$b\bar{b}$$, where ℓ = e, μ. The data sample corresponds to an integrated luminosity of 19.6 fb -1 collected with the CMS detector in proton-proton collisions at $$\sqrt{s}$$ =8 TeV. The measured cross section σ $$t\bar{t}$$ = 257 ± 3 (stat) ± 24 (syst) ± 7 (lumi) pb, assuming a top-quark mass of 172.5 GeV, is consistent with the standard model prediction.« less
  • The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying τ lepton from the processmore » $$t\bar{t}$$ to (ℓν ) (τν τ) $$b\bar{b}$$, where ℓ = e, μ. The data sample corresponds to an integrated luminosity of 19.6 fb -1 collected with the CMS detector in proton-proton collisions at $$\sqrt{s}$$ =8 TeV. The measured cross section σ $$t\bar{t}$$ = 257 ± 3 (stat) ± 24 (syst) ± 7 (lumi) pb, assuming a top-quark mass of 172.5 GeV, is consistent with the standard model prediction.« less
  • Jet multiplicity distributions in top quark pair (tt-bar) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7 fb -1. The measurement is performed in the dilepton decay channels (e +e -+μ - and e ±μ ). Furthermore, the absolute and normalized differential cross sections for tt-bar production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential tt-barbmore » and tt-barbb-bar cross sections are presented for the first time as a function of the kinematic properties of the leading additional b jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. Finally, the data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading ordercalculation.« less
  • The t t-bar production cross section (sigma[t t-bar]) is measured in proton-proton collisions at sqrt(s) = 7 TeV in data collected by the CMS experiment, corresponding to an integrated luminosity of 2.3 inverse femtobarns. The measurement is performed in events with two leptons (electrons or muons) in the final state, at least two jets identified as jets originating from b quarks, and the presence of an imbalance in transverse momentum. The measured value of sigma[t t-bar] for a top-quark mass of 172.5 GeV is 161.9 +/- 2.5 (stat.) +5.1/-5.0 (syst.) +/- 3.6(lumi.) pb, consistent with the prediction of the standardmore » model.« less