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" Measurement of jet multiplicity distributions in [Formula: "
CMS CollaborationChatrchyan, SKhachatryan, VSirunyan, AMTumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VMHartl, CHörmann, NHrubec, JJeitler, MKiesenhofer, WKnünz, VKrammer, MKrätschmer, ILiko, DMikulec, IRabady, DRahbaran, Bet al.
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AL
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| Record Number
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902583
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LA26x2j651
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| Title & Author
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Measurement of jet multiplicity distributions in [Formula: [Article]. see text] production in pp collisions at [Formula: see text].\ CMS CollaborationChatrchyan, SKhachatryan, VSirunyan, AMTumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VMHartl, CHörmann, NHrubec, JJeitler, MKiesenhofer, WKnünz, VKrammer, MKrätschmer, ILiko, DMikulec, IRabady, DRahbaran, Bet al.
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2014
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| Title of Periodical
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UCLA
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| Abstract
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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[Formula: see text] 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[Formula: see text]. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the [Formula: see text] 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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