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    Rights statement: JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 The original publication is available at www.link.springer.com

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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

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Article number141
<mark>Journal publication date</mark>10/2014
<mark>Journal</mark>Journal of High Energy Physics
Issue number10
Volume2014
Number of pages48
Publication StatusPublished
<mark>Original language</mark>English

Abstract

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

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JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 The original publication is available at www.link.springer.com