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Studies of inclusive four-jet production with two
Name
PhysRevD.94.112005.pdf
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715.73 KB
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Adobe PDF
Checksum (MD5)
33c33b7105fa54e439136911ec599a7d
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Khachatryan, V., A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, et al. “Studies of Inclusive Four-Jet Production with Two
b
-Tagged Jets in Proton-Proton Collisions at 7 TeV.” Physical Review D 94, no. 11 (December 8, 2016). doi:10.1103/physrevd.94.112005.
Version
Final published version
Abstract
© 2016 CERN. 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.
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DOI of Published Version
http://dx.doi.org/10.1103/PHYSREVD.94.112005
