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

ATLAS Collaboration

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

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

ATLAS Collaboration

Research output: Contribution to journal › Article › peer-review

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
Article number	670
Number of pages	24
Journal	European Physical Journal C. Particles and Fields
Volume	76
Issue number	12
DOIs	https://doi.org/10.1140/epjc/s10052-016-4521-y
Publication status	Published - 5 Dec 2016

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@article{af2e63df16584509b830b12fcef1d5c7,

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

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.",

author = "Brian Cox and Stephen Watts and Terence Wyatt and {Da Via}, Cinzia and Joleen Pater and Andrew Pilkington and Darren Price and Alexander Oh and {ATLAS Collaboration}",

year = "2016",

month = dec,

day = "5",

doi = "10.1140/epjc/s10052-016-4521-y",

language = "English",

volume = "76",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer Nature",

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T1 - Measurement of the bb¯¯bb¯ dijet cross section in pp collisions at s√=7s=7 TeV with the ATLAS detector

AU - Cox, Brian

AU - Watts, Stephen

AU - Wyatt, Terence

AU - Da Via, Cinzia

AU - Pater, Joleen

AU - Pilkington, Andrew

AU - Price, Darren

AU - Oh, Alexander

AU - ATLAS Collaboration

PY - 2016/12/5

Y1 - 2016/12/5

N2 - 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.

AB - 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.

U2 - 10.1140/epjc/s10052-016-4521-y

DO - 10.1140/epjc/s10052-016-4521-y

M3 - Article

SN - 1434-6044

VL - 76

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

IS - 12

M1 - 670

ER -

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

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