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Guo, Wan-lei; Wang, Li-ming; Wu, Yue-liang; Zhuang, Ci; Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Beijing 100080, Peoples R China
Dark matter constraints on the left-right symmetric model with Z(2) symmetry
发表期刊PHYSICAL REVIEW D
关键词Spontaneous Cp Violation Right-handed Scale Mass Abundances Parity
摘要In the framework of the left-right symmetric model, we investigate an interesting scenario, in which the so-called vacuum expectation value (VEV)-seesaw problem can be naturally solved with Z(2) symmetry. In such a scenario, we find a pair of stable weakly interacting massive particles (WIMPs), which may be the cold dark matter candidates. However, the WIMP-nucleon cross section is 3-5 orders of magnitude above the present upper bounds from the direct dark matter detection experiments for m similar to 10(2)-10(4) GeV. As a result, the relic number density of two stable particles has to be strongly suppressed to a very small level. Nevertheless, our analysis shows that this scenario cannot provide very large annihilation cross sections so as to give the desired relic abundance except for the resonance case. Only for the case if the rotation curves of disk galaxies are explained by the modified Newtonian dynamics (MOND), the stable WIMPs could be as the candidates of cold dark matter.
2008
ISSN1550-7998
卷号78期号:3页码:-
学科领域Physics
收录类别SCI
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5491
专题理论物理所科研产出_SCI论文
通讯作者Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Beijing 100080, Peoples R China
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GB/T 7714
Guo, Wan-lei,Wang, Li-ming,Wu, Yue-liang,et al. Dark matter constraints on the left-right symmetric model with Z(2) symmetry[J]. PHYSICAL REVIEW D,2008,78(3):-.
APA Guo, Wan-lei,Wang, Li-ming,Wu, Yue-liang,Zhuang, Ci,&Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Beijing 100080, Peoples R China.(2008).Dark matter constraints on the left-right symmetric model with Z(2) symmetry.PHYSICAL REVIEW D,78(3),-.
MLA Guo, Wan-lei,et al."Dark matter constraints on the left-right symmetric model with Z(2) symmetry".PHYSICAL REVIEW D 78.3(2008):-.
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