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

Understand

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.