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Search for Charged Higgs Bosons in Decays of Top Quarks in pp Collisions at s=1.96 TeV

Aaltonen, T; Adelman, J; Akimoto, T; Gonzalez, BA; Amerio, S; Amidei, D; Anastassov, A; ... CDF Collaboration; + view all (2009) Search for Charged Higgs Bosons in Decays of Top Quarks in pp Collisions at s=1.96 TeV. Physical Review Letters , 103 (10) , Article 101803. 10.1103/PhysRevLett.103.101803. Green open access

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Abstract

We report on the first direct search for charged Higgs bosons decaying into cs in tt events produced by pp collisions at s=1.96 TeV. The search uses a data sample corresponding to an integrated luminosity of 2.2 fb(-1) collected by the CDF II detector at Fermilab and looks for a resonance in the invariant mass distribution of two jets in the lepton+jets sample of tt candidates. We observe no evidence of charged Higgs bosons in top quark decays. Hence, 95% upper limits on the top quark decay branching ratio are placed at B(t -> H(+)b)< 0.1 to 0.3 for charged Higgs boson masses of 60 to 150 GeV/c(2) assuming B(H+-> cs)=1.0. The upper limits on B(t -> H(+)b) are also used as model-independent limits on the decay branching ratio of top quarks to generic scalar charged bosons beyond the standard model.

Type: Article
Title: Search for Charged Higgs Bosons in Decays of Top Quarks in pp Collisions at s=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.103.101803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.103.101803
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: MASSLESS PARTICLES, CONSERVATION-LAWS, BROKEN SYMMETRIES
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131718
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