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Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Higgs Physics
Interference effects in BSM Higgs searches
E. Fuchs,* G.R. Weiglein
*corresponding author
Full text: pdf
Pre-published on: 2017-02-06 14:28:00
Published on: 2017-04-19 16:48:57
Complex parameters in the MSSM lead to mixing and interference between the two heavier neutral CP-even and CP-odd Higgs bosons.
These effects can become very large in the case of almost degenerate states. In a CP-violating benchmark scenario, we investigate phenomenological implications of such interferences in view of the LHC searches for heavy Higgs bosons decaying to a pair of tau-leptons and produced in gluon fusion and in association with b-quarks. Strongly destructive effects leave parameter regions unconstrained that would be regarded as excluded if no interference terms were taken into account.
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