Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-12-06
Phys.Rev.D60:114001,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version to be published in Phys.Rev.D. Discussion on Rb added plus minor improvements. Conclusions not changed. Latex2e, 40 pa
Scientific paper
10.1103/PhysRevD.60.114001
We recently proposed that, due to the top-quark-mass enhanced Yukawa coupling, the s-channel production of a charged scalar or pseudo-scalar from heavy quark fusion can be an important new mechanism for discovering non-standard spin-0 particles. In this work, we present the complete O(alpha_s) QCD corrections to this s-channel production process at hadron colliders, including the results of QCD resummation over multiple soft-gluon emission. The systematic QCD-improved production and decay rates at the FermiLab Tevatron and the CERN LHC are given for the charged top-pions in the topcolor models and for the charged Higgs bosons in the generic two Higgs doublet model. The direct extension to the production of the neutral (pseudo-)scalars via bb\bar fusion is studied in the minimal supersymmetric standard model (MSSM) with large tan(beta), and in the topcolor model with large bottom Yukawa coupling.
Balazs Csaba
He Hong-Jian
Yuan C.--P.
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