Associated production of charged Higgs bosons and top quarks with POWHEG

Abstract

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.

36 pages

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Single-top hadroproduction in association with a W boson
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Precision predictions for Z'-production at the CERN LHC: QCD matrix elements, parton showers, and joint resummation
• Search for resonant diphoton production with the D0 detector
• Search for charged Higgs bosons decaying to top and bottom quarks in ppbar collisions

Cited by in corpus (5)

• Charged Higgs boson in the $W^{\pm }$ Higgs channel at the Large Hadron Collider
• Top quark spin and $Htb$ interaction in charged Higgs and top quark associated production at LHC
• Determination of charged Higgs couplings at the LHC
• Heavy charged Higgs boson production at the LHC
• Monte Carlo Tools for charged Higgs boson production