Associated Production of a Top Quark and a Charged Higgs Boson

Details Associated Production of a Top Quark and a Charged Higgs Boson Associated Production of a Top Quark and a Charged Higgs Boson

2003-12-22

arxiv.org/abs/hep-ph/0312286v2

Phys.Rev. D71 (2005) 115012

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 9 figures; section, figures, equations and references added, version to appear in PRD, 33 pages, 11 figures

Scientific paper

10.1103/PhysRevD.71.115012

We compute the inclusive and differential cross sections for the associated production of a top quark along with a charged Higgs boson at hadron colliders to next-to-leading order (NLO) in perturbative quantum chromodynamics (QCD) and in supersymmetric QCD. For small Higgs boson masses we include top quark pair production diagrams with subsequent top quark decay into a bottom quark and a charged Higgs boson. We compare the NLO differential cross sections obtained in the bottom parton picture with those for the gluon-initiated production process and find good agreement. The effects of supersymmetric loop contributions are explored. Only the corrections to the Yukawa coupling are sizable in the potential discovery region at the CERN Large Hadron Collider (LHC). All expressions and numerical results are fully differential, permitting selections on the momenta of both the top quark and the charged Higgs boson.

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