/ Experiment-HEP hep-ex/9912013

Search for the charged Higgs boson in the decays of top quark pairs in the e tau and muon tau channels at S**(1/2) = 1.8-TeV

Affolder, Anthony Allen ; Akimoto, H. ; Akopian, A. ; Albrow, Michael G. ; Amaral, P. ; Amendolia, S.R. ; Amidei, Dante E. ; Anikeev, K. ; Antos, J. ; Apollinari, G. ; Arisawa, T. ; Asakawa, T. ; Ashmanskas, William Joseph ; Atac, M. ; Azfar, F. ; Azzi-Bacchetta, P. ; Bacchetta, Nicola ; Bailey, Mark W. ; Bailey, S. ; de Barbaro, Pawel ; Barbaro-Galtieri, Angela ; Barnes, V.E. ; Barnett, Bruce A. ; Barone, M. ; Bauer, G.

Published in: Phys.Rev.
Year: 2000
Vol.: D62
Page No: 012004
Pages: 21

Abstract: Top quark production offers the unique opportunity to search for a charged Higgs boson ($H^\pm$), as the contribution from $t\to H^+b\to \tau^+\nu b$ 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$\tau + \ebar_T$+jets and $\mu\tau +\ebar_T$+jets signatures to set an upper limit on the branching ratio of ${\cal B} (t \to H^{+} b)$ 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 {$H^+\to \tau \nu$} is 100% . The $\tau$ lepton is detected through its 1-prong and 3-prong hadronic decays.

Total numbers of views: 1425
Numbers of unique views: 678
e-proceeding