CP-violating Loop Effects in the Higgs Sector of the MSSM

TL;DR

This paper reviews CP-violating effects in the Higgs sector of the cMSSM, highlighting how higher-order corrections induce mixing among neutral Higgs bosons and affect decay processes.

Contribution

It provides a comprehensive review of recent loop correction results and discusses the proper treatment of external Higgs bosons in production and decay within the cMSSM.

Findings

Loop corrections induce mixing among all three neutral Higgs bosons.

Complete one-loop results for Higgs cascade decays are summarized.

Proper treatment of external Higgs bosons in processes is discussed.

Abstract

CP-violating effects in the Higgs sector of the Minimal Supersymmetric Standard Model with complex parameters (cMSSM) are induced by potentially large higher-order corrections. As a consequence, all three neutral Higgs bosons can mix with each other. Recent results for loop corrections in the Higgs sector of the cMSSM are reviewed. Results for propagator-type corrections of O(alpha_t alpha_s) and complete one-loop results for Higgs cascade decays of the kind h_a -> h_b h_c are summarised, and the proper treatment of external Higgs bosons in Higgs-boson production and decay processes is discussed.