NLO supersymmetric QCD corrections to the $t\bar{b}{H}^{-}$ associated production at hadron colliders

Abstract

We present the next-to-leading order QCD corrected total cross sections and the distributions of the transverse momenta of the final anti-bottom-quark, top-quark and charged Higgs-boson for the processes of $p\bar{p}/pp\to t\bar{b}{H}^{-}+X$ in the minimal supersymmetric standard model(MSSM) at the Tevatron and the LHC. We find that the NLO QCD corrections significantly modify the leading-order distributions of the transverse momenta of final particles($p_T^b$, $p_T^t$ and $p_T^{H^{-}}$), and the total NLO QCD corrections reduce the dependence of the cross section on the renormalization and factorization scales, especially the NLO QCD corrected cross sections at the LHC are nearly independent of these scales. Our results show that the relative correction is obviously related to $m_{H^{-}}$ and $\tan \beta$, and the total NLO QCD relative corrections can be beyond -50% at the Tevatron and approach -40% at the LHC in our chosen parameter space.

Latex files, 26 eps figures included. Accepted for publication in Phys. Rev. D

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• The Hunt for New Physics at the Large Hadron Collider
• Higgs Boson Production and Decay at Hadron Colliders
• Improved cross-section predictions for heavy charged Higgs boson production at the LHC
• Charged-Higgs-boson production at the LHC: NLO supersymmetric QCD corrections
• Neutral MSSM Higgs-boson production with heavy quarks: NLO supersymmetric QCD corrections
• Charged Higgs production in association with a top quark at approximate NNLO
• Exclusive production of heavy charged Higgs boson pairs in the $pp\to pp{H}^{+}{H}^{-}$ reaction at the LHC and a future circular collider
• Electroweak corrections to $gg\to H^{-}t\bar{b}$ at the LHC
• Correlation between the decays $h^0\to \gamma \gamma /gg$ in the MSSM with quark flavour violation
• Flavor changing effects on single charged Higgs boson production associated with a bottom-charm pair at CERN Large Hadron Collider
• (SUSY) Higgs Search at the LHC