Higgs and Z boson decays into light gluinos

Details Higgs and Z boson decays into light gluinos Higgs and Z boson decays into light gluinos

1994-11-16

arxiv.org/abs/hep-ph/9411314v1

Phys.Rev. D51 (1995) 4997-5006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file, 16 pages of text. 8 uufiled postscript figures included. Compressed postscript version with figures available by a

Scientific paper

10.1103/PhysRevD.51.4997

We calculate the decay rate of scalar and pseudoscalar Higgs bosons into a pair of gluinos, within the Minimal Supersymmetric Standard Model. In the theoretically and experimentally allowed light gluino window, $\mg \sim $ 3--5 GeV, gluino pairs can completely dominate the decays of the light scalar Higgs boson and play a prominent role in the decay of the pseudoscalar Higgs boson. This would alter the limits obtained from $Z$ decays on the lightest CP--even and CP--odd Higgs bosons, and could jeopardize the search for these Higgs particles at future hadron colliders. In contrast, the branching ratio for the two--body decay of $Z$ bosons into pairs of light gluinos is less than 0.1\%.

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