Light relic neutralinos

被引：177

作者：

Bottino, A ^{[1
]}

Fornengo, N ^{[1
]}

Scopel, S ^{[1
]}

机构：

[1] Univ Turin, Dipartimento Fis Teor, Sez Torino, I-10125 Turin, Italy

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.67.063519

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The relic abundance and the scalar cross section off the nucleon for light neutralinos (of mass below about 45 GeV) are evaluated in an effective MSSM model without GUT-inspired relations among the gaugino masses. It is shown that these neutralinos may provide a sizable contribution to the matter density in the Universe and produce measurable effects in WIMP direct detection experiments. These properties are elucidated in terms of simple analytical arguments.

引用

页数：6

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