This Letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, Vγ, with V=W(→ℓν) or Z(→ℓ+ℓ-), where ℓ=e or μ. The measurements use 20.3 fb-1of proton-proton collision data at a center-of-mass energy of s=8TeV recorded with the ATLAS detector. No deviations from the Standard Model expectations are found, and production cross section limits are set at 95\% confidence level. Masses of the hypothetical a<inf>T</inf>and ω<inf>T</inf>states of a benchmark Low Scale Technicolor model are excluded in the ranges [275, 960] GeV and [200, 700]∪[750, 890] GeV, respectively. Limits at 95\% confidence level on the production cross section of a singlet scalar resonance decaying to Zγ final states have also been obtained for masses below 1180 GeV. © 2014 .
Search for new resonances in Wγ and Zγ final states in pp collisions at s=8 TeV with the ATLAS detector / Aad, G; Aloisio, Alberto; Alviggi, Mariagrazia; Canale, Vincenzo; Chiefari, Giovanni; DELLA VOLPE, Domenico; Merola, Leonardo; Conventi, Francesco; DELLA PIETRA, Massimo; Giordano, Raffaele; Rossi, Elvira; SANCHEZ PINEDA, ARTURO RODOLFO; Carlino, Gianpaolo; de Asmundis, Riccardo; Di Donato, Camilla; Doria, Alessandra; Iengo, Paolo; Izzo, Vincenzo; Sekhniaidze, Givi. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 738:(2014), pp. 428-447. [10.1016/j.physletb.2014.10.002]
Search for new resonances in Wγ and Zγ final states in pp collisions at s=8 TeV with the ATLAS detector
ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CANALE, VINCENZO;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;MEROLA, LEONARDO;DELLA PIETRA, MASSIMO;GIORDANO, RAFFAELE;Rossi, Elvira;SANCHEZ PINEDA, ARTURO RODOLFO;
2014
Abstract
This Letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, Vγ, with V=W(→ℓν) or Z(→ℓ+ℓ-), where ℓ=e or μ. The measurements use 20.3 fb-1of proton-proton collision data at a center-of-mass energy of s=8TeV recorded with the ATLAS detector. No deviations from the Standard Model expectations are found, and production cross section limits are set at 95\% confidence level. Masses of the hypothetical aI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.