Associated production of charged Higgs bosons and top quarks with POWHEG

Details Associated production of charged Higgs bosons and top quarks with POWHEG Associated production of charged Higgs bosons and top quarks with POWHEG

2012-03-06

arxiv.org/abs/1203.1341v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

36 pages, replacement of a wrong first submit

Scientific paper

The associated production of charged Higgs bosons and top quarks at hadron colliders is an important discovery channel to establish the existence of a non-minimal Higgs sector. Here, we present details of a next-to-leading order (NLO) calculation of this process using the Catani-Seymour dipole formalism and describe its implementation in POWHEG, which allows to match NLO calculations to parton showers. Numerical predictions are presented using the PYTHIA parton shower and are compared to those obtained previously at fixed order, to a leading order calculation matched to the PYTHIA parton shower, and to a different NLO calculation matched to the HERWIG parton shower with MC@NLO. We also present numerical predictions and theoretical uncertainties for various Two Higgs Doublet Models at the Tevatron and LHC.

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