From $b \to s γ$ to the LSP Detection Rates in Minimal String Unification Models

Details From $b \to s γ$ to the LSP Detection Rates in Minimal String Unification Models From $b \to s γ$ to the LSP Detection Rates in Minimal String Unification Models

1997-04-04

arxiv.org/abs/hep-ph/9704234v1

Phys.Rev. D56 (1997) 5754-5760

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 20 pages

Scientific paper

10.1103/PhysRevD.56.5754

We exploit the measured branching ratio for $b \rightarrow s\gamma$ to derive lower limits on the sparticle and Higgs masses in the minimal string unification models. For the LSP('bino'), chargino and the lightest Higgs, these turn out to be 50, 90 and 75 GeV respectively. Taking account of the upper bounds on the mass spectrum from the LSP relic abundance, we estimate the direct detection rate for the latter to vary from 10^{-1} to 10^{-4} events/kg/day. The muon flux, produced by neutrinos from the annihilating LSP's, varies in the range 10^{-2} - 10^{-9} muons/m^2/day.

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