Studies of Inclusive Four-Jet Production with Two b-Tagged Jets in Proton-Proton Collisions at 7 TeV
Physical Review D - Particles, Fields, Gravitation and Cosmology 2016
Viesturs Veckalns

Measurements are presented of the cross section for the production of at least four jets, of which at least two originate from b quarks, in proton-proton collisions. Data collected with the CMS detector at the LHC at a center-of-mass energy of 7 TeV are used, corresponding to an integrated luminosity of 3 pb-1. The cross section is measured as a function of the jet transverse momentum for pT>20 GeV, and of the jet pseudorapidity for |η|<2.4 (b jets), 4.7 (untagged jets). The correlations in azimuthal angle and pT between the jets are also studied. The inclusive cross section is measured to be σ(pp→2b+2j+X)=69±3(stat)±24(syst) nb. The η and pT distributions of the four jets and the correlations between them are well reproduced by event generators that combine perturbative QCD calculations at next-to-leading-order accuracy with contributions from parton showers and multiparton interactions.


DOI
10.1103/PhysRevD.94.112005
Hipersaite
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.112005

Veckalns, V. Studies of Inclusive Four-Jet Production with Two b-Tagged Jets in Proton-Proton Collisions at 7 TeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 2016, Vol.94, No.11, 1.-10.lpp. ISSN 2470-0010. e-ISSN 2470-0029. Pieejams: doi:10.1103/PhysRevD.94.112005

Publikācijas valoda
English (en)
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