Measurement of the cross section for the production of a W boson in association with b- jets in pp collisions at sqrt{s} = 7 TeV with the ATLAS detector

0389652 - FZÚ 2013 RIV NL eng J - Journal Article
Aad, G. - Abbott, B. - Abdallah, J. - Chudoba, Jiří - Gallus, Petr - Gunther, Jaroslav - Hruška, I. - Juránek, Vojtěch - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lipinský, L. - Lokajíček, Miloš - Marčišovský, Michal - Mikeštíková, Marcela - Myška, Miroslav - Němeček, Stanislav - Panušková, M. - Růžička, Pavel - Schovancová, Jaroslava - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Tic, Tomáš - Valenta, J. - Vrba, Václav - Zeman, Martin … Total 3024 authors
Measurement of the cross section for the production of a W boson in association with b- jets in pp collisions at sqrt{s} = 7 TeV with the ATLAS detector.
Physics Letters. B. Roč. 707, č. 5 (2012), 418-437. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT LA08032
Institutional research plan: CEZ:AV0Z10100502
Keywords : jet: bottom * ATLAS * quantum chromodynamics * perturbation theory * jet: transverse momentum * CERN LHC Coll * jet: rapidity * p p interaction
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.569, year: 2012
http://www.sciencedirect.com/science/article/pii/S0370269311015036

A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp collisions at sqrt(s)=7 TeV. Production via top decay is not included in the signal definition. The measurement is based on 35 pb^-1 of data collected with the ATLAS detector at the LHC. The W+b-jet cross section is defined for jets reconstructed with the anti-kt clustering algorithm with transverse momentum above 25 GeV and rapidity within +/-2.1. The b-jets are identified by reconstructing secondary vertices. The fiducial cross section is measured both for the electron and muon decay channel of the W boson and is found to be 10.2 +/- 1.9 (stat) +/- 2.6 (syst) pb for one lepton flavour
Permanent Link: http://hdl.handle.net/11104/0218509