Measurement of the WW cross section in sqrt(s) = 7 TeV pp collisions with ATLAS

0373561 - 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 … Total 3044 authors
Measurement of the WW cross section in sqrt(s) = 7 TeV pp collisions with ATLAS.
Physical Review Letters. Roč. 107, č. 4 (2011), "041802-1"-"041802-18". ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA MŠMT LA08015; GA MŠMT LA08032
Institutional research plan: CEZ:AV0Z10100502
Keywords : W: pair production * channel cross section: measured * ATLAS * CERN LHC Coll * p p: interaction * W: leptonic decay * dilepton: final state
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 7.370, year: 2011

This Letter presents a measurement of the /WW production cross section in sqrt(s)=7 TeV pp collisions by the ATLAS experiment, using 34 pb of integrated luminosity produced by the Large Hadron Collider at CERN. Selecting events with two isolated leptons, each either an electron or a muon, 8 candidate events are observed with an expected background of 1.7±0.6 events. The measured cross section is 41+20−16(stat.)±5(syst.)±1(lumi.) pb, which is consistent with the standard model prediction of 44±3 pb calculated at next-to-leading order in QCD.
Permanent Link: http://hdl.handle.net/11104/0206647