Possible capture of keV sterile neutrino dark matter on radioactive beta-decaying nuclei
文献类型：期刊论文
| 作者 | Li YF(李玉峰) ; Xing ZZ(邢志忠); Li, YF; Xing, ZZ
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| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2011 |
| 卷号 | 695期号:1-4页码:#REF! |
| 关键词 | Sterile neutrinos Dark matter Beta decays Neutrino capture |
| 通讯作者 | Xing, ZZ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | There exists an observed "desert" spanning six orders of magnitude between O(0.5) eV and O(0.5) MeV in the fermion mass spectrum. We argue that it might accommodate one or more keV sterile neutrinos as a natural candidate for warm dark matter. To illustrate this point of view, we simply assume that there is one key sterile neutrino nu(4) and its flavor eigenstate nu(s) weakly mixes with three active neutrinos. We clarify different active-sterile neutrino mixing factors for the radiative decay of nu(4) and beta decays in a self-consistent parametrization. A direct detection of this keV sterile neutrino dark matter in the laboratory is in principle possible since the nu(4) component of nu(e) can leave a distinct imprint on the electron energy spectrum when it is captured on radioactive beta-decaying nuclei. We carry out an analysis of its signatures in the capture reactions nu(e) + H-3 -> He-3 + e(-) and nu(e) + Ru-106 -> Rh-106 + e(-) against the beta-decay backgrounds, and conclude that this experimental approach might not be hopeless in the long run. (C) 2010 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| WOS记录号 | WOS:000286708700037 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226930]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Li YF,Xing ZZ,Li, YF,et al. Possible capture of keV sterile neutrino dark matter on radioactive beta-decaying nuclei[J]. PHYSICS LETTERS B,2011,695(1-4):#REF!. |
| APA | 李玉峰,邢志忠,Li, YF,&Xing, ZZ.(2011).Possible capture of keV sterile neutrino dark matter on radioactive beta-decaying nuclei.PHYSICS LETTERS B,695(1-4),#REF!. |
| MLA | 李玉峰,et al."Possible capture of keV sterile neutrino dark matter on radioactive beta-decaying nuclei".PHYSICS LETTERS B 695.1-4(2011):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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