Measurement of the bb¯ dijet cross section in pp collisions at √s=7 TeV with the ATLAS detector. / The ATLAS Collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 76, 670, 12.2016, p. 1-24.

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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 4.2fb−1. The cross section is measured for events with two identified b-jets with a transverse momentum pT>20 GeV and a minimum separation in the η – ϕ plane of ΔR=0.4. At least one of the jets in the event is required to have pT>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 languageEnglish
Article number670
Pages (from-to)1-24
Number of pages24
JournalEuropean Physical Journal C: Particles and Fields
Volume76
Early online date5 Dec 2016
DOIs
Publication statusPublished - Dec 2016
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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