Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the ATLAS detector

A bstract A direct search for lepton-flavour-violating H → μτ decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H → μτ had channel, where τ had is a hadronically decaying τ -lepton. The search is based on the data sample o...

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Veröffentlicht in:	The journal of high energy physics 2015-11, Vol.2015 (11)
Hauptverfasser:	Abbott, B., Anders, C. F., Besjes, G. J., Besson, N., Boyd, J., Brooks, W. K., Brosamer, J., Buat, Q., Bugge, M. K., Calandri, A., Carlino, G., Ceradini, F., Cerrito, L., Cheplakov, A., Cheremushkina, E., Chiarelli, G., Corriveau, F., Darbo, G., Dell’Orso, M., DeMarco, D. A., Doria, A., Feng, H., Fleischmann, S., Fullana Torregrosa, E., Gaur, B., Gauthier, L., Glaysher, P. C. F., Gorini, B., Gray, H. M., Herten, G., Hinman, R. R., Hodgson, P., Hoummada, A., Jézéquel, S., Jia, J., Kamenshchikov, A., Katre, A., Kharlamov, A. G., Kim, S. H., Klein, M., Koletsou, I., Kruchonak, U., Kuehn, S., Kurashige, H., Lacuesta, V. R., Laforge, B., Le Guirriec, E., Lemmer, B., Luehring, F., Maccarrone, G., Manousakis-Katsikakis, A., Maxfield, S. J., McCarthy, T. G., Mikenberg, G., Moa, T., Morange, N., Mount, R., Nagano, K., Nakahama, Y., Nellist, C., Nicquevert, B., Novgorodova, O., Nuti, F., Ochi, A., Oda, S., Osculati, B., Otero y Garzon, G., Ouchrif, M., Piegaia, R., Pilkington, A. D., Poggioli, L., Potamianos, K., Puzo, P., Rauscher, F., Richter, R., Ridel, M., Safai Tehrani, F., Salamanna, G., Saleem, M., Schmieden, K., Sekhniaidze, G., Shaw, S. M., Smakhtin, V., Smart, B. H., Soldatov, E. Yu, Sommer, P., Stanecka, E., Sugaya, Y., Theveneaux-Pelzer, T., Thomas, J. P., Thompson, E. N., Tseng, J. C-L., Urban, J., Varnes, E. W., Varvell, K. E., Wang, J., Weber, S. W., Wetter, J., Zhou, B., Zinser, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Beyond Standard Model Classical and Quantum Gravitation Elementary Particles Hadron-Hadron Scattering Higgs physics Lepton production Physics Physics and Astronomy PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Experimental Physics Relativity Theory String Theory
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Zusammenfassung:	A bstract A direct search for lepton-flavour-violating H → μτ decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H → μτ had channel, where τ had is a hadronically decaying τ -lepton. The search is based on the data sample of proton-proton collisions collected by the ATLAS experiment corresponding to an integrated luminosity of 20.3 fb −1 at a centre-of-mass energy of s = 8 TeV. No statistically significant excess of data over the predicted background is observed. The observed (expected) 95% confidence-level upper limit on the branching fraction, Br( H → μτ ), is 1.85% (1.24%).
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP11(2015)211