Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-08-31
Physics
High Energy Physics
High Energy Physics - Phenomenology
Summary of a talk presented at the SUSY95 Workshop, Palaiseau, France, May 1995 10 pages, latex, 6 uuencoded, tarred, compress
Scientific paper
The effect of CP violating phases in the MSSM on the relic density of the lightest supersymmetric particle (LSP) is considered. In particular, the upper limits on the LSP mass are relaxed when phases in the MSSM are allowed to take non-zero values and when the LSP is predominantly a gaugino (bino). Previous limits of $\mb \la 250$ GeV for $\Omega h^2 < 0.25$ can be relaxed to $\mb \la 650$ GeV. The additional constraints imposed by the neutron and electron electric dipole moments induced by these phases are also considered. Though there is some restriction on the phases, the bino mass may still be as large as $\sim$ 350 GeV and certain phases can be arbitrarily large.
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