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√=7s=7 TeV, using the ATLAS detector at the LHC. The data used correspond to an integrated luminosity of 4.2fb−14.2fb−1 . The cross section is measured for events with two identified b-jets with a transverse momentum pT>20pT>20 GeV and a minimum separation in the ηη – ϕϕ plane of ΔR=0.4ΔR=0.4 . At least one of the jets in the event is required to have pT>270pT>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.
Original language | English |
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Article number | 670 |
Number of pages | 24 |
Journal | European Physical Journal C. Particles and Fields |
Volume | 76 |
Issue number | 12 |
DOIs | |
Publication status | Published - 5 Dec 2016 |