Electroweak corrections to $gg\to H^{-}t\bar{b}$ at the LHC

Abstract

The dominant contribution to $H^{-}t\bar{b}$ production at the LHC is the gluon-gluon fusion parton subprocess. We perform for the case of the complex MSSM a complete calculation of the NLO electroweak contributions to this channel. The other small contributions with quarks or photon in the initial state are calculated at tree level. The results are improved by using the effective bottom-Higgs couplings to resum the leading radiative corrections. We find that, beyond these leading corrections, the NLO electroweak contributions can be still be significant. The effect of the complex phases of the soft-breaking parameters is found to be sizable.

added a few comments on the five-flavor scheme and the treatment of m_b, results unchanged

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Cited by in corpus (4)

• Improved cross-section predictions for heavy charged Higgs boson production at the LHC
• Exclusive production of heavy charged Higgs boson pairs in the $pp\to pp{H}^{+}{H}^{-}$ reaction at the LHC and a future circular collider
• The NLO electroweak effects on the Higgs production in association with bottom quark pair at the LHC
• Heavy charged Higgs boson production at the LHC