Confronting the DAMPE excess with the scotogenic type-II seesaw model
文献类型:期刊论文
作者 | Ding, Ran1; Han, Zhi-Long2; Feng, Lei3; Zhu, Bin4 |
刊名 | CHINESE PHYSICS C |
出版日期 | 2018-08-01 |
卷号 | 42期号:8页码:7 |
ISSN号 | 1674-1137 |
关键词 | dark matter radiative neutrino mass model DAMPE excess |
DOI | 10.1088/1674-1137/42/8/083104 |
英文摘要 | The DArk Matter Particle Explorer (DAMPE) has observed a tentative peak at E similar to 1.4 TeV in the cosmic-ray electron spectrum. In this paper, we interpret this excess in the scotogenic type-II seesaw model. This model extends the canonical type-II seesaw model with dark matter (DM) candidates and a loop-induced vacuum expectation value of the triplet scalars, v(Delta), resulting in small neutrino masses naturally even for TeV scale triplet scalars. Assuming a nearby DM subhalo, the DAMPE excess can be explained by DM annihilating into a pair of triplet scalars which subsequently decay to charged lepton final states. Spectrum fitting of the DAMPE excess indicates it potentially favors the inverted neutrino mass hierarchy. We also discuss how to evade associated neutrino flux in our model. |
WOS关键词 | DARK-MATTER ; PROPAGATION ; POSITRONS |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000440069200005 |
源URL | [http://libir.pmo.ac.cn/handle/332002/21545] |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Ding, Ran |
作者单位 | 1.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 2.Univ Jinan, Sch Phys & Technol, Jinan 250022, Shandong, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 4.Yantai Univ, Dept Phys, Yantai 264005, Peoples R China |
推荐引用方式 GB/T 7714 | Ding, Ran,Han, Zhi-Long,Feng, Lei,et al. Confronting the DAMPE excess with the scotogenic type-II seesaw model[J]. CHINESE PHYSICS C,2018,42(8):7. |
APA | Ding, Ran,Han, Zhi-Long,Feng, Lei,&Zhu, Bin.(2018).Confronting the DAMPE excess with the scotogenic type-II seesaw model.CHINESE PHYSICS C,42(8),7. |
MLA | Ding, Ran,et al."Confronting the DAMPE excess with the scotogenic type-II seesaw model".CHINESE PHYSICS C 42.8(2018):7. |
入库方式: OAI收割
来源:紫金山天文台
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