This Letter reports a measurement of the WW production cross section in ??? s = 7 TeV pp collisions using data corresponding to an integrated luminosity of 1.02 fb???1 collected with the ATLAS detector. Using leptonic decays of oppositely charged W bosons, the total measured cross section is ??(pp ??? WW) = 54.4 ± 4.0 (stat.) ± 3.9 (syst.) ± 2.0 (lumi.) pb, consistent with the Standard Model prediction of ??(pp???WW) = 44.4±2.8 pb. Limits on anomalous electroweak triple-gauge couplings are extracted from a fit to the transverse-momentum distribution of the leading charged lepton in the event.
Measurement of the WW cross section in ???s=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings / Aad, G.; Aloisio, Alberto; Alviggi, Mariagrazia; Canale, Vincenzo; Cevenini, Francesco; Chiefari, Giovanni; DELLA VOLPE, Domenico; Merola, Leonardo; Patricelli, Sergio; Conventi, Francesco; DELLA PIETRA, Massimo; Giordano, Raffaele; Musto, Elisa; Rossi, Elvira; SANCHEZ PINEDA, ARTURO RODOLFO; Carlino, Gianpaolo; de Asmundis, Riccardo; Di Donato, Camilla; Doria, Alessandra; Iengo, Paolo; Izzo, Vincenzo; Sekhniaidze, Givi; Al, e. t. .. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 712:(2012), pp. 289-308. [10.1016/j.physletb.2012.05.003]
Measurement of the WW cross section in ???s=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings
ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CANALE, VINCENZO;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;MEROLA, LEONARDO;PATRICELLI, SERGIO;DELLA PIETRA, MASSIMO;GIORDANO, RAFFAELE;Rossi, Elvira;SANCHEZ PINEDA, ARTURO RODOLFO;
2012
Abstract
This Letter reports a measurement of the WW production cross section in ??? s = 7 TeV pp collisions using data corresponding to an integrated luminosity of 1.02 fb???1 collected with the ATLAS detector. Using leptonic decays of oppositely charged W bosons, the total measured cross section is ??(pp ??? WW) = 54.4 ± 4.0 (stat.) ± 3.9 (syst.) ± 2.0 (lumi.) pb, consistent with the Standard Model prediction of ??(pp???WW) = 44.4±2.8 pb. Limits on anomalous electroweak triple-gauge couplings are extracted from a fit to the transverse-momentum distribution of the leading charged lepton in the event.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
