Würzburg 2018 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
T: Fachverband Teilchenphysik
T 60: Theorie: Higgs / BSM I
T 60.8: Talk
Wednesday, March 21, 2018, 18:15–18:30, Z6 - SR 1.010
Impact of CP-violating phases on MSSM Higgs searches — •Shruti Patel — ITP and IKP, Karlsruhe Institute of Technology
We study the effects of CP-violating phases on the phenomenology of the MSSM Higgs sector. Complex parameters in the MSSM give rise to CP-violating mixing between the tree-level neutral Higgs mass eigenstates, leading to three new CP-admixed loop-corrected mass eigenstates h1, h2, h3 . In scenarios where the lightest Higgs h1 is SM-like and the two other Higgs states are much heavier and nearly mass degenerate, complex parameters induce a large admixture between the two heavy Higgs states. In this talk, we study the impact of CP-violating interference effects between h2 and h3 in an example process of bb → τ+τ−. We demonstrate that large destructive interference effects modify the LHC exclusion bounds such that parts of the parameter space that would be excluded by MSSM Higgs searches under the assumption of CP-conservation open up when the possibility of CP-violation in the Higgs sector is accounted for.