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A search for Higgs bosons in final states with multiple tau leptons at the DZero experiment

Two searches for the production of Higgs bosons decaying into tau and mu leptons, using data collected with the DZero detector at the Fermilab Tevatron p-bar(p)collider, are presented. A search for the pair production of doubly charged Higgs bosons in the processq-bar(q) to H^{++}H^{--}, where H^{++} decays to tau-tau, mu-mu or tau-mu lepton pairs, with an integrated luminosity of up to L= 7.0 fb^{-1}, is presented. No significant excess of data over the expected SM background is observed and the results are used to set 95\% C.L. limits on the pair production cross section of doubly charged Higgs bosons in the range 90 < M_{H^{++}} < 200 GeV. A second search for the production of the Standard Model Higgs boson in the final state tau-tau-mu+X is presented, using an integrated luminosity of L=8.6 fb^{-1}. Again no significant excess of data is observed over the background expectation and 95% C.L. limits are set on the observed cross section relative to the Standard Model prediction, in the range 100 < M_{H} < 200 GeV.

Identiferoai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:574362
Date January 2013
CreatorsSuter, Louise
ContributorsSoldner-Rembold, Stefan
PublisherUniversity of Manchester
Source SetsEthos UK
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation
Sourcehttps://www.research.manchester.ac.uk/portal/en/theses/a-search-for-higgs-bosons-in-final-states-with-multiple-tau-leptons-at-the-dzero-experiment(f7dcbe1a-bd3f-489e-9b30-fe648d2dc353).html

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