Cross-sections and branching ratios for charged Higgs searches

TL;DR

This paper provides detailed theoretical predictions of charged Higgs boson production cross-sections and decay branching ratios at 14 TeV LHC energies, aiding experimental searches across different mass regimes.

Contribution

It offers comprehensive calculations of production and decay rates for charged Higgs bosons, incorporating higher-order corrections and benchmark scenarios, to support experimental detection efforts.

Findings

Cross-sections below top-quark mass are calculated using PYTHIA and FeynHiggs.

NLO calculations are used for higher mass regimes.

Decay branching ratios are evaluated with FeynHiggs and HDecay, including MSSM corrections.

Abstract

For the preparation of the experimental search for charged Higgs bosons at the LHC detailed studies have been made to determine the expected charged Higgs boson production cross-sections and decay branching ratios at sqrts = 14 TeV. In the mass regime below the t-quark mass the expected production cross-sections are discussed using PYTHIA and FeynHiggs program packages based on the decay t to H^+b. For higher masses Next-to-Leading-Order (NLO calculations have been used, and particular attention has been given to the intermediate-mass region. The decay branching ratios have been studied with the program packages FeynHiggs and HDecay. Higher-order corrections (Delta_b corrections) in the MSSM are consistently taken into account. Two benchmark scenarios are considered, one of them the `mhmax'.