Decays of the MSSM Higgs Bosons with Explicit CP Violation

Details Decays of the MSSM Higgs Bosons with Explicit CP Violation Decays of the MSSM Higgs Bosons with Explicit CP Violation

1999-07-26

arxiv.org/abs/hep-ph/9907496v3

Phys.Rev.D61:015003,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 10 figures, some references added and corrected

Scientific paper

10.1103/PhysRevD.61.015003

We study Higgs boson decays in the minimal supersymmetric standard model where the tree-level CP invariance of the Higgs potential is explicitly broken by loop effects of soft CP-violating Yukawa interactions related to scalar quarks of the third generation. The scalar-pseudoscalar mixing among two neutral CP-even Higgs bosons and one CP-odd Higgs boson due to explicit CP violation modifies their tree-level couplings to fermions, to the W^\pm and Z bosons and to Higgs bosons themselves significantly. We analyze the phenomenological impact of explicit CP violation on the branching ratios of the neutral Higgs boson decays in detail and discuss how to directly confirm the existence of explicit CP violation through \tau^+ \tau^- and t \bar{t} spin correlations in the decays of the neutral Higgs bosons into a tau-lepton pair and a top-quark pair.

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