Measurement of the cross-section for b-jets produced in association with a Z boson at sqrt(s)=7 TeV with the ATLAS detector

Measurement of the cross-section for b-jets produced in association with a Z boson at sqrt(s)=7 TeV with the ATLAS detector

A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of appro...

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Veröffentlicht in:Physics letters. B 2012, Vol.706 (4-5), p.295-313
Hauptverfasser: Aad, G, Abbott, B, Abdallah, J, Abdelalim, A A, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H
Format: Artikel
Sprache:eng
Schlagworte:
b-Jet
Bosons
Cross sections
Cross sections (physics)
Cross-section
Decay
Elementary particles
Energy (nuclear)
fysik
High Energy Physics - Experiment
Lead (metal)
Mass distribution
Physics
Standard Model
Z boson
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Beschreibung
Zusammenfassung:A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb-1. The event selection requires a Z boson decaying into high pT electrons or muons, and at least one b-jet, identified by its displaced vertex, with transverse momentum pT>25 GeV and rapidity |y|
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2011.11.059