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

Chatrchyan, S.

doi:10.1140/epjc/s10052-014-3014-0

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

Journal Article · Wed Aug 20 00:00:00 EDT 2014 · European Physical Journal. C, Particles and Fields (Online)

DOI:https://doi.org/10.1140/epjc/s10052-014-3014-0· OSTI ID:1177126

Chatrchyan, S. ^[1]

Yerevan Physics Institute (Armenia). et al.

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.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: CMS Collaboration

OSTI ID:: 1177126

Report Number(s):: CMS-TOP-12-018; CERN-PH-EP-2014-048; FERMILAB-PUB-14-167-CMS; arXiv eprint number arXiv:1404.3171

Journal Information:: European Physical Journal. C, Particles and Fields (Online), Vol. 74, Issue 8; Related Information: See Erratum version, http://dx.doi.org/10.1140/epjc/s10052-015-3437-2 which is OSTIID 1234827; ISSN 1434-6052

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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Measurements of the $t\bar{t}$ charge asymmetry using the dilepton decay channel in pp collisions at $\sqrt{s} =$ 7 TeV

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Measurement of jet multiplicity distributions in $t \bar{t}$ production in pp collisions at √s = 7 TeV [Supplemental Data] https://doi.org/10.17182/hepdata.64426 The current record is supplemented by this dataset	dataset	August 2014
Measurement of jet multiplicity distributions in $\mathrm {t}\overline{\mathrm {t}}$ production in pp collisions at $\sqrt{s} = 7\,\text {TeV} $ [Supplemental Data] Chatrchyan, Serguei; Khachatryan, Vardan; Sirunyan, Albert M. https://doi.org/10.17182/hepdata.64426.v1 The current record is supplemented by this dataset	dataset	August 2014
"Table 1" of "Measurement of jet multiplicity distributions in t t-bar production in pp collisions at $\sqrt{s}$ = 7 TeV" Collaboration, Cms https://doi.org/10.17182/hepdata.64426.v1/t1 The current record is supplemented by this dataset	dataset	January 2014
"Table 5" of "Measurement of jet multiplicity distributions in t t-bar production in pp collisions at $\sqrt{s}$ = 7 TeV" Collaboration, Cms https://doi.org/10.17182/hepdata.64426.v1/t5 The current record is supplemented by this dataset	dataset	January 2014
"Table 6" of "Measurement of jet multiplicity distributions in t t-bar production in pp collisions at $\sqrt{s}$ = 7 TeV" Collaboration, Cms https://doi.org/10.17182/hepdata.64426.v1/t6 The current record is supplemented by this dataset	dataset	January 2014