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

M Aaboud; G Aad; B Abbott; J Abdallah; O Abdinov; B Abeloos; Torsten Åkesson; Simona Bocchetta; LENE Bryngemark; Caterina Doglioni; Anders Floderus; Vincent Hedberg; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

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

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

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

M Aaboud, G Aad, B Abbott, J Abdallah, O Abdinov, B Abeloos, Torsten Åkesson, Simona Bocchetta, LENE Bryngemark, Caterina Doglioni, …

The European physical journal. C, Particles and fields, Vol.76(12), 670

2016

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

PMID: 28316501

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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 Δ R= 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. © 2016, CERN for the benefit of the ATLAS collaboration.

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Details

Title: Subtitle: Measurement of the bb¯ dijet cross section in pp collisions at √s=7 TeV with the ATLAS detector
Creators: M Aaboud - Premier University
G Aad - Aix-Marseille Université
B Abbott - University of Oklahoma
J Abdallah - University of Iowa
O Abdinov - Azerbaijan National Academy of Sciences
B Abeloos - Université Paris-Saclay
Torsten Åkesson - Particle Physics
Simona Bocchetta - Lund University
LENE Bryngemark - Particle Physics
Caterina Doglioni - Particle Physics
Anders Floderus - Particle Physics
Vincent Hedberg - Particle Physics
Göran Jarlskog - Particle Physics
Else Lytken - Particle Physics
Ulf Mjörnmark - Particle Physics
Oxana Smirnova - Particle Physics
Oleksandr Viazlo - Particle Physics
ATLAS Collaboration
Contributors: U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The European physical journal. C, Particles and fields, Vol.76(12), 670
DOI: 10.1140/epjc/s10052-016-4521-y
PMID: 28316501
NLM abbreviation: Eur Phys J C Part Fields
ISSN: 1434-6044
eISSN: 1434-6052
Language: English
Date published: 2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199931002771

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