Improving the discovery potential of charged Higgs bosons at Tevatron Run 2

Abstract

By exploiting the full process $p\bar p\to t\bar b H^-$, in place of the standard Monte Carlo procedure of factorising production and decay, $p\bar p\to t\bar t$ followed by $\bar t\to\bar b H^-$, we show how to improve the discovery reach of the Tevatron (Run 2) in charged Higgs boson searches, in the large $\tanβ$ region. This is achieved in conjunction with dedicated cuts on a `transverse mass' distribution sensitive to the Higgs boson mass and to `polarisation' effects in the $H^-\toτ^-\barν_τ$ decay channel.

12 pages, LaTeX, 5 figures (one figure added, discussion slightly changed: version to appear in JHEP)