Search for charged Higgs bosons from top quark decays in \ppbar collisions at $\sqrt{s}=1.96$ TeV

TL;DR

This paper reports a search for charged Higgs bosons in top quark decays at 1.96 TeV, setting upper limits on their production and exclusion regions in the MSSM parameter space.

Contribution

First to present exclusion regions in the MSSM parameter space with radiative and Yukawa corrections based on collider data.

Findings

No evidence for charged Higgs bosons was found.

Upper limits on BR(t->H^+b) were established.

Exclusion regions in the MSSM (mH, tan beta) plane were determined.

Abstract

We report the results of a search for a charged Higgs boson in the decays of top quarks produced in \ppbar collisions at a center-of-mass energy of 1.96 TeV. We use a data sample corresponding to an integrated luminosity of 193/pb collected by the upgraded Collider Detector at Fermilab. No evidence for charged Higgs production is found, allowing 95% C.L. upper limits to be placed on BR(t->H^+b) for different charged Higgs decay scenarios. In addition, we present in the MSSM (mH,tan beta) plane the first exclusion regions with radiative and Yukawa coupling corrections.