PHASES IN THE MSSM, ELECTRIC-DIPOLE MOMENTS AND COSMOLOGICAL DARK-MATTER

被引：85

作者：

FALK, T ^{[1
]}

OLIVE, KA ^{[1
]}

SREDNICKI, M ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICS LETTERS B | 1995年 / 354卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)00617-T

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 m(B)(similar to) less than or similar to 250 GeV for Omega h(2) < 0.25 can be relaxed to m(B)(similar to) less than or similar to 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 similar to 350 GeV and certain phases can be arbitrarily large.

引用

页码：99 / 106

页数：8

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