The results of a search for charged Higgs bosons are presented. The analysis is based on 4.6 fb(-1) of proton-proton collision data at root s = 7TeV 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 90GeV to 160GeV, respectively. In the context of the m(h)(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 90GeV and 150GeV. RI Takai, Helio/C-3301-2012; Fabbri, Laura/H-3442-2012; Villa, Mauro/C-9883-2009; Jones, Roger/H-5578-2011; Wemans, Andre/A-6738-2012; Fazio, Salvatore /G-5156-2010; valente, paolo/A-6640-2010; Delmastro, Marco/I-5599-2012; Livan, Michele/D-7531-2012

Search for charged Higgs bosons decaying via H-+/- -> tau nu in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS detector

CALDERINI, GIOVANNI;CAVASINNI, VINCENZO;Francavilla P;RODA, CHIARA MARIA ANGELA;Verducci, M.;
2012-01-01

Abstract

The results of a search for charged Higgs bosons are presented. The analysis is based on 4.6 fb(-1) of proton-proton collision data at root s = 7TeV 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 90GeV to 160GeV, respectively. In the context of the m(h)(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 90GeV and 150GeV. RI Takai, Helio/C-3301-2012; Fabbri, Laura/H-3442-2012; Villa, Mauro/C-9883-2009; Jones, Roger/H-5578-2011; Wemans, Andre/A-6738-2012; Fazio, Salvatore /G-5156-2010; valente, paolo/A-6640-2010; Delmastro, Marco/I-5599-2012; Livan, Michele/D-7531-2012
2012
Aad, G; Abbott, B; Abdallah, J; Khalek, Sa; Abdelalim, Aa; Abdinov, O; Abi, B; Abolins, M; Abouzeid, Os; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/157367
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