Full one-loop supersymmetric corrections to charged Higgs boson pair production inγγcollisions

Abstract

The complete one-loop electroweak corrections to charged Higgs boson pair production in $\ensuremath{\gamma}\ensuremath{\gamma}$ collision mode at linear colliders in the minimal supersymmetric standard model (MSSM), are calculated in this paper. We discuss the dependence of the corrections to the subprocess $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}{H}^{+}{H}^{\ensuremath{-}}$ on the related parameters, such as the colliding energy, charged Higgs boson mass ${M}_{{H}^{\ifmmode\pm\else\textpm\fi{}}}$ and some supersymmetric parameters $\mathrm{tan}\ensuremath{\beta}$, ${M}_{\mathrm{SUSY}}$ and gaugino mass parameter ${M}_{2}$. We find that the corrections generally reduce the Born cross sections and the relative one-loop corrections to both the subprocess typically in the range of $\ensuremath{-}10%$ to $\ensuremath{-}30%$. We also present the numerical results at the SPS1a' point from the supersymmetry parameter analysis (SPA) project. We conclude that the full one-loop electroweak corrections to subprocess $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}{H}^{+}{H}^{\ensuremath{-}}$ and the parent process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}{H}^{+}{H}^{\ensuremath{-}}$ are significant and therefore should be considered in precise analysis of charged Higgs boson pair productions via $\ensuremath{\gamma}\ensuremath{\gamma}$ collision at future linear colliders.