Abstract

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 satisfied. New upper limits on light particle masses are obtained.

Notes

Originally published in Physical Review Letters v.70 (1993): 3696-3699. DOI: 10.1103/PhysRevLett.70.3696

Keywords

SU(5), proton stability, relic density constraints

Subject Categories

Supergravity, Grand unified theories (Nuclear physics)

Disciplines

Physics

Publisher

American Physical Society

Publication Date

6-14-1993

Rights Information

Copyright (1993) American Physical Society

Rights Holder

American Physical Society

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