Research Papers in Physics and Astronomy

 

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 tH+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 +ET+jets and μ τ+ET+jets signatures to set an upper limit on the branching ratio of Ɓ (tH+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.

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