Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-02-27
Phys.Lett.B354:99-106,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages in LaTeX, with 4 Postscript figures (included)
Scientific paper
10.1016/0370-2693(95)00617-T
We consider the effect of CP violating phases in the MSSM on the relic density of the lightest supersymmetric particle (LSP). In particular, we find that the upper limits on the LSP mass are relaxed when phases in the MSSM are allowed to take non-zero values 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. We also consider the additional constraints imposed by the neutron and electron electric dipole moments induced by these phases. 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.
Falk Toby
Olive Keith
Srednicki Mark
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