Phys. Rev. Lett. 70, 3696–3699 (1993)Predictions in SU(5) supergravity grand unification with proton stability and relic density constraintsReceived 12 April 1993; published in the issue dated 14 June 1993 It is shown that in the physically interesting domain of the parameter space of SU(5) supergravity grand unified theory, the Higgs-boson and Z poles dominate the annihilation of the lightest supersymmetric particle. Here the naive analyses on thermal averaging breaks down and formulas are derived which give a rigorous treatment over the poles. These results are then used to show that there exist significant domains in the parameter space where the constraints of proton stability and cosmology are simultaneously satisifed. New upper limits on light particle masses are obtained. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.3696
DOI:
10.1103/PhysRevLett.70.3696
PACS:
12.10.Gq, 04.65.+e, 98.80.Cq
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