Dark matter constraints on the left-right symmetric model with Z(2) symmetry

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	Dark matter constraints on the left-right symmetric model with Z(2) symmetry
	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
刊名	PHYSICAL REVIEW D
	2008
卷号	78 期号:3 页码:-
关键词	Spontaneous Cp Violation Right-handed Scale Mass Abundances Parity
ISSN号	1550-7998
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000258975300097
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5491]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式 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):-.