A direct search for lepton-flavour-violating H -> mu tau decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H -> mu tau(had) channel, where tau(had) is a hadronically decaying tau-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 root s = 8TeV. 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 -> mu tau), is 1.85% (1.24%).

Search for lepton-flavour-violating H -> mu tau decays of the Higgs boson with the ATLAS detector / Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., Abouzeid, O.s., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B.s., Adamczyk, L., Adams, D.l., Adelman, J., Adomeit, S., Adye, T., Affolder, A.a., Agatonovic-Jovin, T., Agricola, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2015:11(2015), pp. 1-33. [10.1007/JHEP11(2015)211]

Search for lepton-flavour-violating H -> mu tau decays of the Higgs boson with the ATLAS detector

Amoroso, S;Artoni, G;Bagiacchi, P;Bagnaia, P;Bauce, M;Beretta, M;Bernard, C;Biglietti, M;Bini, C;Burdin, S;Calace, N;Calandri, A;Canale, V;Carlino, G;Carvalho, J;Cerutti, F;Chen, X;Chiarella, V;Ciapetti, G;Corradi, M;Costa, MJ;Da Via, C;de Asmundis, R;De Benedetti, A;De Cecco, S;De Pedis, D;Della Pietra, M;Di Domenico, A;Di Nardo, R;Doglioni, C;Gauzzi, P;Ge, P;Gentile, S;Giagu, S;Giannetti, P;Gomes, A;Hu, D;Ippolito, V;Kado, M;Kawamoto, T;Kimura, N;Kuna, M;Lacava, F;Lubatti, HJ;Mandelli, B;Mazzaferro, L;Monzani, S;Nemethy, P;Policicchio, A;Salamanna, G;Schulz, H;Tudorache, A;Zanello, L;
2015

Abstract

A direct search for lepton-flavour-violating H -> mu tau decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H -> mu tau(had) channel, where tau(had) is a hadronically decaying tau-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 root s = 8TeV. 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 -> mu tau), is 1.85% (1.24%).
2015
Hadron-Hadron scattering; Beyond Standard Model; Higgs physics; Lepton production
01 Pubblicazione su rivista::01a Articolo in rivista
Search for lepton-flavour-violating H -> mu tau decays of the Higgs boson with the ATLAS detector / Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., Abouzeid, O.s., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B.s., Adamczyk, L., Adams, D.l., Adelman, J., Adomeit, S., Adye, T., Affolder, A.a., Agatonovic-Jovin, T., Agricola, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2015:11(2015), pp. 1-33. [10.1007/JHEP11(2015)211]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1656049
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