Explicit CP violation in the MSSM Higgs sector

TL;DR

This paper investigates how explicit CP-violating phases in the MSSM affect the production and decay rates of the lightest Higgs boson at the LHC, revealing potentially large variations from the CP-conserving scenario.

Contribution

It provides a detailed analysis of the impact of CP-violating phases on Higgs boson signals in the MSSM at the LHC, highlighting significant rate variations.

Findings

Production and decay rates of H_1 can vary up to orders of magnitude due to CP phases.

Sensitivity of gg to H_1 to gamma-gamma process depends on phases phi_mu and phi_{A_f}.

CP violation can substantially alter Higgs phenomenology in the MSSM.

Abstract

We analysed the sensitivity of the process gg to H_1 to gamma-gamma to the explicitly CP-violating phases phi_mu and phi_{A_f} in the Minimal Supersymmetric Standard Model (MSSM) at the Large Hadron Collider (LHC), where H_1 is the lightest Supersymmetric Higgs boson. We conclude that depending on these phases, the overall production and decay rates of H_1 can vary up to orders of magnitude compared to the CP-conserving case.