Measurement of W gamma and Z gamma production cross sections in pp collisions at sqrt(s) = 7 TeV and limits on anomalous triple gauge couplings with the ATLAS detector

Measurement of W gamma and Z gamma production cross sections in pp collisions at sqrt(s) = 7 TeV and limits on anomalous triple gauge couplings with the ATLAS detector

This Letter presents measurements of l nu gamma and l^+ l^- gamma (l=e, mu) production in 1.02 fb^-1 of pp collision data recorded at sqrt(s) = 7 TeV with the ATLAS detector at the LHC during 2011. Events dominated by W gamma and Z gamma production with leptonic decays of the W and Z bosons are sele...

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Veröffentlicht in:Physics letters. B 2012-05, Vol.717, p.49-69
Hauptverfasser: Aad, G., Albrand, S., Buat, Q., Clement, B., Collot, J., Crépé-Renaudin, S., Dechenaux, B., Delemontex, T., Delsart, P.A., Genest, M.H., Hostachy, J.Y., Laisne, E., Ledroit-Guillon, F., Lleres, A., Lucotte, A., Malek, F., Polci, F., Stark, J., Sun, X., Trocmé, B., Wang, J., Weydert, C., Biscarat, C., Cogneras, E., Rahal, G., Abdel Khalek, S., Abreu, H., Andari, N., Arnault, C., Augé, E., Barrillon, P., Benoit, M., Binet, S., Bourdarios, C., de La Taille, C., de Vivie de Regie, J.B., Duflot, L., Escalier, M., Fayard, L., Fournier, D., Grivaz, J.-F., Henrot-Versillé, S., Hrivnac, J., Iconomidou-Fayard, L., Idarraga, J., Kado, M., Lorenzo Martinez, N., Lounis, A., Makovec, N., Matricon, P., Niedercorn, F., Poggioli, L., Puzo, P., Renaud, A., Rousseau, D., Rybkin, G., Sauvan, J.B., Schaarschmidt, J., Schaffer, A.C., Scifo, E., Serin, L., Simion, S., Tanaka, R., Teinturier, M., Veillet, J.J., Vukotic, I., Wicek, F., Zerwas, D., Zhang, Zhiqing, Boumediene, D., Busato, Emmanuel, Calvet, D., Calvet, S., Camacho Toro, Reina Coromoto, Cinca, Diane, Donini, J., Febbraro, R., Ghodbane, N., Guicheney, C., Liao, H., Pallin, D., Paredes Hernández, Daniela, Podlyski, F., Santoni, C., Vazeille, F., Aperio Bella, L., Aubert, B., Berger, N., Colas, J., Delmastro, M., Di Ciaccio, L., Doan, T.K.O., Elles, S., Goy, C., Helary, L., Hryn'Ova, T., Jérémie, A., Jézéquel, S., Kataoka, M., Labbe, J.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:This Letter presents measurements of l nu gamma and l^+ l^- gamma (l=e, mu) production in 1.02 fb^-1 of pp collision data recorded at sqrt(s) = 7 TeV with the ATLAS detector at the LHC during 2011. Events dominated by W gamma and Z gamma production with leptonic decays of the W and Z bosons are selected, and their production cross sections and kinematic properties are measured in several ranges of the photon transverse energy. The results are compared to Standard Model predictions and are used to determine limits on anomalous W-W-gamma and Z-Z-gamma/Z-gamma-gamma couplings.
ISSN:0370-2693
DOI:10.1016/j.physletb.2012.09.017