Complex parameters in the MSSM lead to mixing and interference between the two heavier neutral CP-even and CP-odd Higgs states. 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 τ-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.
@article{arxiv.1705.06686,
title = {Interference effects in MSSM Higgs searches at the LHC},
author = {Elina Fuchs and Georg Weiglein},
journal= {arXiv preprint arXiv:1705.06686},
year = {2017}
}
Comments
5 pages, 2 figures; conference C16-08-03; references updated, some clarifications