skip to main content
Show search Show menu
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV

Abstract

The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton + jets decay channels using data corresponding to an integrated luminosity of 5.0 inverse femtobarns. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t t-bar production is determined as a function of the additional jet multiplicity in the lepton + jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.

Authors:
 [1]
+ Show Author Affiliations
  1. Yerevan Physics Institute (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1177126
Report Number(s):
CMS-TOP-12-018; CERN-PH-EP-2014-048; FERMILAB-PUB-14-167-CMS
Journal ID: ISSN 1434-6052; arXiv eprint number arXiv:1404.3171
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields (Online)
Additional Journal Information:
Journal Volume: 74; Journal Issue: 8; Related Information: See Erratum version, http://dx.doi.org/10.1140/epjc/s10052-015-3437-2 which is OSTIID 1234827; Journal ID: ISSN 1434-6052
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chatrchyan, S. Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV. United States: N. p., 2014. Web. doi:10.1140/epjc/s10052-014-3014-0.
Copy to clipboard
Chatrchyan, S. Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV. United States. https://doi.org/10.1140/epjc/s10052-014-3014-0
Copy to clipboard
Chatrchyan, S. 2014. "Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV". United States. https://doi.org/10.1140/epjc/s10052-014-3014-0. https://www.osti.gov/servlets/purl/1177126.
Copy to clipboard
@article{osti_1177126,
title = {Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV},
author = {Chatrchyan, S.},
abstractNote = {The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton + jets decay channels using data corresponding to an integrated luminosity of 5.0 inverse femtobarns. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t t-bar production is determined as a function of the additional jet multiplicity in the lepton + jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.},
doi = {10.1140/epjc/s10052-014-3014-0},
url = {https://www.osti.gov/biblio/1177126}, journal = {European Physical Journal. C, Particles and Fields (Online)},
issn = {1434-6052},
number = 8,
volume = 74,
place = {United States},
year = {Wed Aug 20 00:00:00 EDT 2014},
month = {Wed Aug 20 00:00:00 EDT 2014}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1140/epjc/s10052-014-3014-0
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

Vector boson pair production at the LHC
journal, July 2011

SVD approach to data unfolding
journal, April 1996

  • Höcker, Andreas; Kartvelishvili, Vakhtang
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 372, Issue 3
  • https://doi.org/10.1016/0168-9002(95)01478-0

The anti- k t jet clustering algorithm
journal, April 2008

Next-to-Leading-Order QCD Corrections to t t ¯ + jet Production at Hadron Colliders
journal, June 2007

Matching NLO QCD computations and parton shower simulations
journal, June 2002

Identification of b-quark jets with the CMS experiment
journal, April 2013

Measurement of the Electron Charge Asymmetry in Inclusive W Production in p p Collisions at s = 7     TeV
journal, September 2012

PYTHIA 6.4 physics and manual
journal, May 2006

Measurement of the $ \mathrm{t}\overline{\mathrm{t}} $ production cross section in the dilepton channel in pp collisions at $ \sqrt{s}=7 $ TeV
journal, November 2012

Measurement of differential top-quark-pair production cross sections in pp collisions at $\sqrt{s} = 7\ \mathrm{TeV}$
journal, March 2013

Searching for top flavor violating resonances
journal, August 2011

Tuning Monte Carlo generators: The Perugia tunes
journal, October 2010

Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV
journal, October 2012

HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)
journal, January 2001

Measurement of the <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:mi mathvariant="normal">t</mml:mi><mml:mover accent="true"><mml:mi mathvariant="normal">t</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> production cross section in pp collisions at <mml:math altimg="si2.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> with lepton+jets final states
journal, March 2013

Matching NLO QCD computations with parton shower simulations: the POWHEG method
journal, November 2007

The CMS experiment at the CERN LHC
journal, August 2008

Dispelling the <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:msup><mml:mi>N</mml:mi><mml:mn>3</mml:mn></mml:msup></mml:math> myth for the <mml:math altimg="si2.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:msub><mml:mi>k</mml:mi><mml:mi>t</mml:mi></mml:msub></mml:math> jet-finder
journal, September 2006

Matching matrix elements and shower evolution for top-pair production in hadronic collisions
journal, January 2007

Non-perturbative QCD effects and the top mass at the Tevatron
journal, July 2007

New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002

CT10 next-to-next-to-leading order global analysis of QCD
journal, February 2014

Determination of jet energy calibration and transverse momentum resolution in CMS
journal, November 2011

Review of Particle Physics
journal, July 2012

The catchment area of jets
journal, April 2008

New parton distributions for collider physics
journal, October 2010

A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
journal, November 2004

Parton distributions for the LHC
journal, July 2009

Parton distributions with LHC data
journal, February 2013

NLO single-top production matched with shower in POWHEG: s - and t -channel contributions
journal, September 2009

Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • https://doi.org/10.1016/S0168-9002(03)01368-8

Single-top Wt-channel production matched with parton showers using the POWHEG method
journal, February 2011

Measurement of the <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:mi>t</mml:mi><mml:mover accent="true"><mml:mi>t</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> production cross section in <mml:math altimg="si2.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:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> collisions at <mml:math altimg="si3.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>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> using lepton+jets events with lifetime b-tagging
journal, October 2005

Measurement of the underlying event activity at the LHC with $\sqrt{s}\ =$ 7 TeV and comparison with $\sqrt{s}\ =$ 0.9 TeV
text, January 2011

Review of Particle Physics
text, January 2008

Measurement of the <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:mi>W</mml:mi><mml:mo>→</mml:mo><mml:mi>τ</mml:mi><mml:msub><mml:mi>ν</mml:mi><mml:mi>τ</mml:mi></mml:msub></mml:math> cross section in pp collisions at <mml:math altimg="si2.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> TeV</mml:mtext></mml:math> with the ATLAS experiment
journal, January 2012

Parton distributions for the LHC
text, January 2007

Review of Particle Physics
text, January 2018

Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV
text, January 2012

Review of Particle Physics
text, January 2012

Identification of b-quark jets with the CMS experiment
text, January 2013

Determination of jet energy calibration and transverse momentum resolution in CMS
text, January 2011

The anti-k_t jet clustering algorithm
text, January 2008

Parton distributions for the LHC
text, January 2009

Vector boson pair production at the LHC
text, January 2011

Parton distributions with LHC data
text, January 2012

Dispelling the N^3 myth for the Kt jet-finder
text, January 2005

    Sort options
    [ × clear filter / sort ]

    Works referencing / citing this record:

    Top-quark physics at the Large Hadron Collider
    journal, May 2017

    Top-quark physics at the Large Hadron Collider
    text, January 2016

      Sort options
      [ × clear filter / sort ]

      Similar records in OSTI.GOV collections:

      Other research related to this record: