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Measurement of the tt¯ production cross section in the all-jets final state in pp collisions at √s = 8 TeV
Journal article   Open access   Peer reviewed

Measurement of the tt¯ production cross section in the all-jets final state in pp collisions at √s = 8 TeV

V Khachatryan, Bora Işıldak and CMS Collaboration
The European physical journal. C, Particles and fields, Vol.76(3), 128
03/08/2016
DOI: 10.1140/epjc/s10052-016-3956-5
PMCID: PMC4946853
PMID: 27471431
url
https://doi.org/10.1140/epjc/s10052-016-3956-5View
Published (Version of record) Open Access

Abstract

The cross section for tt¯ production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 TeV at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 fb−1. The inclusive cross section is found to be 275.6±6.1(stat)±37.8(syst)±7.2(lumi) \,pb. The normalized differential cross sections are measured as a function of the top quark transverse momenta, pT, and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark pT spectra are significantly softer than theoretical predictions.
High Energy Physics Particle Physics Perturbation Theory Physical Sciences Physics Scattering (n)jet 0202 Atomic 0206 Quantum Physics 114 Physical sciences 530 Physics 8000 GeV Astronomy (miscellaneous) CERN LHC Coll cms CMS collaboration CMS detector colliding beams Compact Muon Solenoid Engineering (miscellaneous) Experiment experimental results Jets final state Large Hadron Collider (LHC) measured Molecular Nuclear Nuclear & Particles Physics pair production Particle And Plasma Physics Particles & Fields Physics Institute pp collisions proton proton collisions Science & Technology Top physics top production transverse momentum transverse momentum dependence tt¯ production

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