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Title

Search for new resonances in Wγ and Zγ final states in pp collisions at √s=8 TeV with the ATLAS detector

CollaborationWith : Alexandre, Gauthier / Ancu, Lucian Stefan / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Bucci, Francesca / Camacho Toro, Reina / Clark, Allan Geoffrey / Delitzsch, Chris Malena / Della Volpe, Domenico / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Gramling, Johanna Léna / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / La Rosa, Alessandro / Mermod, Philippe / Miucci, Antonio / Muenstermann, Daniel / Nektarijevic, Snezana / Nikolics, Katalin / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Tykhonov, Andrii / Vallecorsa, Sofia / Wu, Xin
Published in Physics Letters. B. 2014, vol. 738, p. 428-447
Collection Open Access - SCOAP3
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 −1 of proton–proton collision data at a center-of-mass energy of s=8 TeV 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 aT and ωT 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.
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ATLAS COLLABORATION. Search for new resonances in Wγ and Zγ final states in pp collisions at √s=8 TeV with the ATLAS detector. In: Physics Letters. B, 2014, vol. 738, p. 428-447. https://archive-ouverte.unige.ch/unige:55771

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Deposited on : 2015-04-27

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