Higgs Boson Decays into Light Gravitinos

Details Higgs Boson Decays into Light Gravitinos Higgs Boson Decays into Light Gravitinos

1997-03-29

arxiv.org/abs/hep-ph/9703452v1

Phys.Lett. B407 (1997) 243-249

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 embedded figures; LaTeX with equation.sty and epsf.sty

Scientific paper

10.1016/S0370-2693(97)00670-9

We study decays of the neutral and charged Higgs bosons of the minimal supersymmetric standard model into a very light gravitino and a neutralino or chargino. Present experimental constraints already imply that the lighter scalar Higgs boson can only have a very small branching ratio into this mode. However, if the gravitino mass is below $\sim 0.5$ eV, the heavier neutral and charged Higgs boson decays into a gravitino can be important or even dominant. We discuss the resulting signature for associate production of the heavy CP-even and the CP-odd states at future $e^+ e^-$ colliders, and comment on Higgs boson production at hadron colliders.

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