ITP OpenIR  > 理论物理所2012年知识产出
Probing the fourth generation Majorana neutrino dark matter
Zhou, YF; Zhou, YF (reprint author), Chinese Acad Sci Beijing, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
2012
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号85期号:5页码:53005
摘要The heavy fourth-generation Majorana neutrino can be stable and contribute to a small fraction of the relic density of dark matter (DM) in the Universe. Because of its strong coupling to the standard model particles, it can be probed by the current direct and indirect DM detection experiments even it is a subdominant component of the whole halo DM. Assuming that it contributes to the same fraction of the local halo DM density as that of the DM relic density in the Universe, we show that the current Xenon100 data constrain the mass of the stable Majorana neutrino to be greater than the mass of the top quark. In the mass range from 200 GeV to a few hundred GeV, the effective spin-independent cross section for the neutrino elastic-scattering off nucleon is insensitive to the neutrino mass and mixing, and is predicted to be similar to 1.5 X 10(-44) cm(2), which can be reached by the direct DM detection experiments soon. In the same mass region the predicted effective spin-dependent cross section for the heavy neutrino scattering off proton is in the range of 2 X 10(-40) cm(2) similar to 2 X 10(-39) cm(2), which is within the reach of the ongoing DM indirect search experiments such as IceCube. We demonstrate such properties of the heavy neutrino DM in a fourth-generation model with the stability of the fourth Majorana neutrino protected by an additional generation-dependent U(1) gauge symmetry.
部门归属Chinese Acad Sci Beijing, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Electroweak Symmetry-breaking Cp-violation Search Masses
学科领域Physics
资助者National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science
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收录类别SCI
语种英语
资助者National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science
WOS记录号WOS:000301477700003
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被引频次:7[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/311006/15144
专题理论物理所2012年知识产出
通讯作者Zhou, YF (reprint author), Chinese Acad Sci Beijing, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Zhou, YF,Zhou, YF . Probing the fourth generation Majorana neutrino dark matter[J]. PHYSICAL REVIEW D,2012,85(5):53005.
APA Zhou, YF,&Zhou, YF .(2012).Probing the fourth generation Majorana neutrino dark matter.PHYSICAL REVIEW D,85(5),53005.
MLA Zhou, YF,et al."Probing the fourth generation Majorana neutrino dark matter".PHYSICAL REVIEW D 85.5(2012):53005.
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