QCD corrections to scalar production via heavy quark fusion at hadron colliders

摘要: We recently proposed that, due to the top-quark-mass enhanced Yukawa coupling, s-channel production of a charged scalar or pseudoscalar from heavy quark fusion can be an important new mechanism for discovering nonstandard spin-0 particles. In this work, we present complete $O({\ensuremath{\alpha}}_{s})$ QCD corrections process at hadron colliders, and also results resummation over multiple soft-gluon emission. The systematic QCD-improved decay rates Fermilab Tevatron CERN LHC are given top pions in top-color models, Higgs bosons generic two doublet model. direct extension neutral (pseudo)scalars via $b\overline{b}$ is studied minimal supersymmtric standard model (MSSM) with large $\mathrm{tan}\ensuremath{\beta},$ bottom coupling.