Measurement of the transverse momentum distribution of W bosons in pp collisions at sqrt{s} = 7 TeV with the ATLAS detector

0389665 - FZÚ 2013 RIV US 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 transverse momentum distribution of W bosons in pp collisions at sqrt{s} = 7 TeV with the ATLAS detector.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 85, č. 1 (2012), "012005-1"-"012005-36". ISSN 1550-7998
R&D Projects: GA MŠMT LA08032
Institutional research plan: CEZ:AV0Z10100502
Keywords : W transverse momentum * quantum chromodynamics * perturbation theory * ATLAS * differential cross section * transverse momentum * CERN LHC Coll
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.691, year: 2012
http://prd.aps.org/abstract/PRD/v85/i1/e012005

This paper describes a measurement of the W boson transverse momentum distribution using ATLAS pp collision data from the 2010 run of the LHC at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of about 31 pb^-1. Events from both W -> e nu and W -> mu nu are used, and the transverse momentum of the W candidates is measured through the energy deposition in the calorimeter from the recoil of the W. The resulting distributions are unfolded to obtain the normalized differential cross sections as a function of the W boson transverse momentum. We present results for pTW < 300 GeV in the electron and muon channels as well as for their combination, and compare the combined results to the predictions of perturbative QCD and a selection of event generators.
Permanent Link: http://hdl.handle.net/11104/0218519