Measurement of the $b\overline{b}$ dijet cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1140/epjc/s10052-016-4521-y

paper

Measurement of the $b b$ dijet cross section in $pp$ collisions at $s = 7$ TeV with the ATLAS detector

arXiv:1607.08430 · doi:10.1140/epjc/s10052-016-4521-y

Abstract

The dijet production cross section for jets containing a $b$ -hadron ( $b$ -jets) has been measured in proton-proton collisions with a centre-of-mass energy of $s = 7$ TeV, using the ATLAS detector at the LHC. The data used correspond to an integrated luminosity of 4.2 fb $^{- 1}$ . The cross section is measured for events with two identified $b$ -jets with a transverse momentum $p_{T} > 20$ GeV and a minimum separation in the $η$ - $ϕ$ plane of $Δ R = 0.4$ . At least one of the jets in the event is required to have $p_{T} > 270$ GeV. The cross section is measured differentially as a function of dijet invariant mass, dijet transverse momentum, boost of the dijet system, and the rapidity difference, azimuthal angle and angular distance between the $b$ -jets. The results are compared to different predictions of leading order and next-to-leading order perturbative quantum chromodynamics matrix elements supplemented with models for parton-showers and hadronization.

19 pages plus author list ( 36 pages total), 8 figures, 3 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2013-03/

Measurement of the bb dijet cross section in pp collisions at s​=7 TeV with the ATLAS detector

Abstract

References in corpus (6)

Measurement of the $b b$ dijet cross section in $pp$ collisions at $s = 7$ TeV with the ATLAS detector