EFFECT OF RELAXING GRAND-UNIFICATION ASSUMPTIONS ON NEUTRALINOS IN THE MINIMAL SUPERSYMMETRIC MODEL

被引：46

作者：

GRIEST, K

ROSZKOWSKI, L

机构：

[1] UNIV CALIF BERKELEY,CTR PARTICLE ASTROPHYS,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720

[3] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.46.3309

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the phenomenological and cosmological properties of light neutralinos in the minimal supersymmetric model when grand-unification assumptions are relaxed. We show that substantial changes result in the mass and mixing properties of the neutralinos, in the interpretation of recent experimental restrictions on neutralino parameter space, and in the relic abundance of light-neutralino dark matter. Relaxation of the grand-unification assumptions is easily accomplished, even within the minimal supergravity model, and results in a larger neutralino parameter space and the viability of light-neutralino (less-than-or-similar-to 10-20 GeV) dark matter.

引用

页码：3309 / 3317

页数：9

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