Number of the records: 1
Search for charged Higgs bosons in top quark decays
- 1.
SYSNO ASEP 0339427 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for charged Higgs bosons in top quark decays Author(s) Abazov, V. M. (RU)
Abbott, B. (US)
Abolins, M. (US)
Kupčo, Alexander (FZU-D) RID, ORCID
Lokajíček, Miloš (FZU-D) RID, ORCIDSource Title Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 682, č. 3 (2009), 278-286Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords D0 ; Tevatron ; Higgs Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000274533100003 DOI 10.1016/j.physletb.2009.11.016 Annotation We present a search for charged Higgs bosons in top quark decays. We analyze the /eplus, /muplus, $ee$, $e/mu$, $/mu/mu$, /etau and /mutau final states from top quark pair production events, using data from about 1${/text{fb}}^{-1}$ of integrated luminosity recorded by the /dzero experiment at the Fermilab Tevatron Collider. We consider different scenarios of possible charged Higgs boson decays, one where the charged Higgs boson decays purely hadronically into a charm and a strange quark, another where it decays into a τ lepton and a τ neutrino and a third one where both decays appear. We extract limits on the branching ratio $B(t/to H^+ b)$ for all these models. We use two methods, one where the $t/bar{t}$ production cross section is fixed, and one where the cross section is fitted simultaneously with $B(t/to H^+b)$. Based on the extracted limits, we exclude regions in the charged Higgs boson mass and $/tan /beta$ parameter space. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
Number of the records: 1