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Search for Charged Higgs Bosons in Top Quark Decays
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2009 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 682, 278-286 p.Article in journal (Refereed) Published
Abstract [en]

We present a search for charged Higgs bosons in top quark decays. We analyze the e+jets, μ+jets, ee, , μμ, τe and τμ final states from top quark pair production events, using data from about 1 fb−1 of integrated luminosity recorded by the DØ 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(tH+b) for all these models. We use two methods, one where the

production cross section is fixed, and one where the cross section is fitted simultaneously with B(tH+b). Based on the extracted limits, we exclude regions in the charged Higgs boson mass and tanβ parameter space for different scenarios of the minimal supersymmetric standard model

Place, publisher, year, edition, pages
2009. Vol. 682, 278-286 p.
National Category
Subatomic Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:su:diva-33106DOI: 10.1016/j.physletb.2009.11.016ISI: 000274533100003OAI: oai:DiVA.org:su-33106DiVA: diva2:282350
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Note
Publikationen har totalt 487 författare, V. Abazov et al.Available from: 2009-12-19 Created: 2009-12-19 Last updated: 2017-12-12Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1016/j.physletb.2009.11.016

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