Search for the charged Higgs boson in the decays of top quark pairs in the eτ and μτ channels at √s =1.8 TeV

Authors

• T. Affolder, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

7-1-2000

Comments

Published by American Physical Society. Phys. Rev. D 62, 012004 (2000). http://prd.aps.org. Copyright © 2000 American Physical Society. Permission to use.

Abstract

Top quark production offers the unique opportunity to search for a charged Higgs boson (H^±), as the contribution from t→H₊b→ τ ₊ νb can be large in extensions of the standard model. We use results from a search for top quark pair production by the Collider Detector at Fermilab (CDF) in the e τ +E_T+jets and μ τ+E_T+jets signatures to set an upper limit on the branching ratio of Ɓ (t→H₊b) in 106 pb^-1 of data. The upper limit is in the range 0.5 to 0.6 at 95% C.L. for H₊ masses in the range 60 to 160 GeV, assuming the branching ratio for H₊→ τ ν is 100%. The τ lepton is detected through its 1-prong and 3-prong hadronic decays.