Z decays into light gluinos: a calculation based on unitarity

Abstract

The Z boson can decay to a pair of light gluinos through loop-mediated processes. Based on unitarity of the S-matrix, the imaginary part of the decay amplitude is computed in the presence of a light bottom squark. This imaginary part can provide useful information on the full amplitude. Implications are discussed for a recently proposed light gluino and light bottom squark scenario.

19 pages, LaTeX, 3 figures, submitted to Phys. Rev. D

References in corpus (7)

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• Light bottom squark and gluino confront electroweak precision measurements
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Cited by in corpus (3)

• Hunting physics beyond the standard model with unusual $W^{\pm }$ and $Z$ decays
• Heavy bottom squark mass in the light gluino and light bottom squark scenario
• Can there be a heavy sbottom hidden in three-jet data at LEP?