Search for charged Higgs bosons decaying via H.sup. ±./sup. → tau nu in t t-bar events using pp collision data at sqrt{s} =7 TeV with the ATLAS detector

0389728 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abdallah, J. - Böhm, Jan - Chudoba, Jiří - Gallus, Petr - Gunther, Jaroslav - Hruška, I. - Juránek, Vojtěch - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Marčišovský, Michal - Mikeštíková, Marcela - Myška, Miroslav - Němeček, Stanislav - Růžička, Pavel - Schovancová, Jaroslava - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Tic, Tomáš - Valenta, J. - Vrba, Václav - Zeman, Martin … celkem 2878 autorů
Search for charged Higgs bosons decaying via H ^± → tau nu in t t-bar events using pp collision data at sqrt{s} =7 TeV with the ATLAS detector.
Journal of High Energy Physics. Roč. 2012, č. 6 (2012), s. 1-29. ISSN 1126-6708
Grant CEP: GA MŠMT LA08032
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: ATLAS * LHC * hadron-hadron scattering * Higgs particle * leptonic decay
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 5.618, rok: 2012
http://arxiv.org/abs/arXiv:1204.2760

The results of a search for charged Higgs bosons are presented. The analysis is based on 4.6/fb of proton-proton collision data at sqrt(s) = 7 TeV collected by the ATLAS experiment at the Large Hadron Collider, using top quark pair events with a tau lepton in the final state. The data are consistent with the expected background from Standard Model processes. Assuming that the branching ratio of the charged Higgs boson to a tau lepton and a neutrino is 100%, this leads to upper limits on the branching ratio of top quark decays to a b quark and a charged Higgs boson between 5% and 1% for charged Higgs boson masses ranging from 90 GeV to 160 GeV, respectively. In the context of the mh-max scenario of the MSSM, tan(beta) above 12-26, as well as between 1 and 2-6, can be excluded for charged Higgs boson masses between 90 GeV and 150 GeV.
Trvalý link: http://hdl.handle.net/11104/0218585