confrontingthedampeexcesswiththescotogenictypeiiseesawmodel

	confrontingthedampeexcesswiththescotogenictypeiiseesawmodel
	Ding Ran 1; Han Zhilong 2; Feng Lei 3; Zhu Bin 4
刊名	chinesephysicsc
	2018
卷号	42 期号:8
ISSN号	1674-1137
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.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/28550]
专题	中国科学院紫金山天文台
作者单位	1.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
推荐引用方式 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).