Relic abundance of dark matter in the minimal universal extra dimension model

被引：81
|
作者：
Kakizaki, Mitsuru [1 ]
Matsumoto, Shigeki
Senami, Masato
机构：
[1] Univ Tokyo, ICRR, Kashiwa, Chiba 2778582, Japan
[2] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[3] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan
来源：
PHYSICAL REVIEW D | 2006年 / 74卷 / 02期
关键词：
D O I：
10.1103/PhysRevD.74.023504
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the relic abundance of dark matter in the minimal universal extra dimension model including resonance processes by second Kaluza-Klein particles in all coannihilation processes. After including second Kaluza-Klein resonance processes, the relic abundance of dark matter is reduced by about 30%. Thus, the compactification scale 1/R of the extra dimension consistent with the WMAP observation is increased by a few hundred GeV. As a result, the cosmologically allowed compactification scale is 600 GeV less than or similar to 1/R less than or similar to 1400 GeV for Lambda R=20.
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页数：10
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