Search for charged Higgs bosons in decays of top quarks in p-pbar collisions at sqrt(s) = 1.96 TeV

TL;DR

This paper reports a search for charged Higgs bosons in top quark decays using CDF data, setting upper limits on their production and providing constraints on non-Standard Model charged bosons.

Contribution

First search for charged Higgs in top decays assuming H->c-sbar in small tan beta region using fully reconstructed mass.

Findings

No evidence of charged Higgs observed.

Upper limits on B(t->H+b) are set at 0.1-0.3.

Limits can constrain non-SM charged boson production.

Abstract

We report the recent charged Higgs search in top quark decays in 2.2/fb CDF data. This is the first attempt to search for charged Higgs using fully reconstructed mass assuming H->c-sbar in small tan beta region. No evidence of a charged Higgs is observed in the CDF data, hence 95% upper limits are placed at B(t->H+b) < 0.1-0.3. The upper limits can be used to limit the generic non-SM charged boson production in top quark decays.