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, A., Alviggi, M., Canale, V., Cevenini, F., Chiefari, G., DELLA VOLPE, D., Merola, L., Patricelli, S., Conventi, F., DELLA PIETRA, M., Giordano, R., Musto, E., Rossi, E., SANCHEZ PINEDA, A.R., Carlino, G., de Asmundis, R., Di Donato, C., Doria, A., Iengo, P., et al.. - 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.
