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Three-body decays of Higgs bosons at LEP2 and application to a hidden fermiophobic Higgs

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arxiv hep-ph/9806337 v2 pith:HTQXG3GL submitted 1998-06-10 hep-ph

A.G. Akeroyd (Universidad de Valencia) This is my paper · ORCID
classification hep-ph
keywords higgsdecaysbosonbosonslightfermiophobiclep2three-body
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abstract

We study the decays of Higgs bosons to a lighter Higgs boson and a virtual gauge boson in the context of the non-supersymmetric Two-Higgs-Doublet-Model (2HDM). We consider the phenomenological impact at LEP2 and find that such decays, when open, may be dominant in regions of parameter space and thus affect current Higgs boson search techniques. Three-body decays would be a way of producing light neutral Higgs bosons which have so far escaped detection at LEP due to suppressed couplings to the $Z$, and are of particular importance in the 2HDM (Model I) which allows both a light fermiophobic Higgs and a light charged scalar.

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  1. Charged Higgs Search in 2HDM

    hep-ph 2024-12 accept novelty 5.0 of 10

    Updated LHC and LEP constraints on charged Higgses show that H+ to A W and H+ to H W decay channels are complementary to fermionic channels and extend the search reach in the Type-L 2HDM.

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