Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-12-07
Phys.Rev. D67 (2003) 075006
Physics
High Energy Physics
High Energy Physics - Phenomenology
31 pages, discussions, figs and refs added, conclusion unchanged, final PRD version
Scientific paper
10.1103/PhysRevD.67.075006
The complete next-to-leading order (NLO) QCD corrections to charged Higgs boson associated production with top quark through $b g \to tH^{-}$ at the CERN Large Hadron Collider are calculated in the minimal supersymmetric standard model (MSSM) and two-Higgs-doublet model in the $\bar{MS}$ scheme. The NLO QCD corrections can reduce the scale dependence of the leading order (LO) cross section. The K-factor (defined as the ratio of the NLO cross section to the LO one) does not depend on $\tan\beta$ if the same quark running masses are used in the NLO and LO cross sections, and varies roughly from $\sim 1.6$ to $\sim 1.8$ when charged Higgs boson mass increases from 200 GeV to 1000 GeV.
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