Measurement of differential production cross-sections for a $Z$ boson in association with $b$-jets in 7 TeV proton-proton collisions with the ATLAS detector - INSPIRE

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Measurement of differential production cross-sections for a $Z$ boson in association with $b$ -jets in 7 TeV proton-proton collisions with the ATLAS detector

ATLAS

Collaboration

Jul 14, 2014

49 pages

Published in:

JHEP 10 (2014) 141

Published: Oct 24, 2014

e-Print:

1407.3643 [hep-ex]

DOI:

10.1007/JHEP10(2014)141

Report number:

CERN-PH-EP-2014-118

Experiments:

CERN-LHC-ATLAS

View in:

reference search135 citations

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Abstract: (Springer)

Measurements of differential production cross-sections of a Z boson in association with b-jets in pp collisions at

\sqrt{s}=7

TeV are reported. The data analysed correspond to an integrated luminosity of 4.6 fb

^{−1}

recorded with the ATLAS detector at the Large Hadron Collider. Particle-level cross-sections are determined for events with a Z boson decaying into an electron or muon pair, and containing b-jets. For events with at least one b-jet, the cross-section is presented as a function of the Z boson transverse momentum and rapidity, together with the inclusive b-jet cross-section as a function of b-jet transverse momentum, rapidity and angular separations between the b-jet and the Z boson. For events with at least two b-jets, the cross-section is determined as a function of the invariant mass and angular separation of the two highest transverse momentum b-jets, and as a function of the Z boson transverse momentum and rapidity. Results are compared to leading-order and next-to-leading-order perturbative QCD calculations.

Note:

34 pages plus author list and cover pages (57 pages total), 13 figures, 4 tables, published in JHEP10(2014)141. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2012-15/

Electroweak interaction
Hadron-Hadron Scattering
QCD
Heavy quark production
p p: scattering
quantum chromodynamics: perturbation theory
higher-order: 0
higher-order: 1
ATLAS
CERN LHC Coll

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