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
Number of Authors: 2887
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, Vol. 10, 141- p.Article in journal (Refereed) Published
Measurements of differential production cross-sections of a Z boson in association with b-jets in pp collisions at root 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.
Place, publisher, year, edition, pages
2014. Vol. 10, 141- p.
IdentifiersURN: urn:nbn:se:uu:diva-240809DOI: 10.1007/JHEP10(2014)141ISI: 000344864300001OAI: oai:DiVA.org:uu-240809DiVA: diva2:777080
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP10(2014)1412015-01-082015-01-082015-01-08Bibliographically approved