Associated charged Higgs and W boson production in the MSSM at the LHC

TL;DR

This study explores the production of charged Higgs and W bosons at the LHC within the MSSM, demonstrating potential signals and enhancements depending on model parameters and CP-violating phases.

Contribution

It provides a detailed analysis of associated H^\pm W production in the MSSM, including background control and resonance effects with CP violation considerations.

Findings

Viable signal for large tan beta and intermediate H^\pm masses.

Cross-section can be resonantly enhanced by large mass-splittings and CP phases.

Background from W + 2 jets can be effectively suppressed.

Abstract

We investigate the associated production of charged Higgs bosons (H^\pm) and W bosons at the CERN Large Hadron Collider, using the leptonic decay H^+ -> tau^+ nu_tau and hadronic W decay, within different scenarios of the Minimal Supersymmetric Standard Model (MSSM) with both real and complex parameters. Performing a parton level study we show how the irreducible Standard Model background from W + 2 jets can be controlled by applying appropriate cuts. In the standard m_h^max scenario we find a viable signal for large tan beta and intermediate H^\pm masses (~ m_t). In MSSM scenarios with large mass-splittings among the heavy Higgs bosons the cross-section can be resonantly enhanced by factors up to one hundred, with a strong dependence on the CP-violating phases.