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

0373561 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
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 … celkem 3044 autorů
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
Grant CEP: GA MŠMT LA08015; GA MŠMT LA08032
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: W: pair production * channel cross section: measured * ATLAS * CERN LHC Coll * p p: interaction * W: leptonic decay * dilepton: final state
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.370, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0206647