Supersymmetry and the cosmic ray positron excess

被引：65
|
作者：
Kane, GL [1 ]
Wang, LT [1 ]
Wang, TT [1 ]
机构：
[1] Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA
来源：
PHYSICS LETTERS B | 2002年 / 536卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(02)01839-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We explore several supersymmetric alternatives to explain predictions for the cosmic ray positron excess. Light sneutrino or neutralino LSP's, and a fine-tuned model designed to provide a delta-function input, can give adequate statistical descriptions of the reported HEAT data if non-thermal production of the relic cold dark matter density dominates and/or if "boost factors" (that could originate in uncertainties from propagation or local density fluctuations) to increase the size of the signal are included. All the descriptions can be tested at the Tevatron or LHC, and some in other WIMP detecting experiments. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：263 / 269
页数：7
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