Baryon asymmetry and dark matter

被引：135

作者：

Bolz, M ^{[1
]}

Buchmüller, W ^{[1
]}

Plümacher, M ^{[1
]}

机构：

[1] DESY, D-22603 Hamburg, Germany

来源：

PHYSICS LETTERS B | 1998年 / 443卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(98)01342-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the implications of a large baryogenesis temperature, T-B = O(10(10) GeV), on the mass spectrum of superparticles in supersymmetric extensions of the standard model. Models with a neutralino as lightest superparticle (LSP) are excluded. A consistent picture is obtained with the gravitino as LSP, followed by a higgsino-like neutralino (NSP). Gravitinos with masses from 10 to 100 GeV may be the dominant component of dark matter. (C) 1998 Elsevier Science B.V. All rights reserved.

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页码：209 / 213

页数：5

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