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confrontingthedampeexcesswiththescotogenictypeiiseesawmodel
Ding Ran1; Han Zhilong2; Feng Lei3; Zhu Bin4
2018
Source Publicationchinesephysicsc
ISSN1674-1137
Volume42Issue:8
AbstractThe 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.
Language英语
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/28551
Collection中国科学院紫金山天文台
Affiliation1.北京大学
2.济南大学
3.中国科学院紫金山天文台
4.烟台大学
Recommended Citation
GB/T 7714
Ding Ran,Han Zhilong,Feng Lei,et al. confrontingthedampeexcesswiththescotogenictypeiiseesawmodel[J]. chinesephysicsc,2018,42(8).
APA Ding Ran,Han Zhilong,Feng Lei,&Zhu Bin.(2018).confrontingthedampeexcesswiththescotogenictypeiiseesawmodel.chinesephysicsc,42(8).
MLA Ding Ran,et al."confrontingthedampeexcesswiththescotogenictypeiiseesawmodel".chinesephysicsc 42.8(2018).
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