Pan Xu1; Zhang Cun2; Feng Lei1
Source Publicationsciencechinaphysicsmechanicsastronomy
AbstractHighly accurate measurements of cosmic ray electron flux by the dark matter particle explorer (DAMPE) ranging between 25 GeV and 4.6 TeV have recently been published. A sharp peak structure was found at 1.4 TeV. This unexpected peak structure can be reproduced by the annihilation/decay of a nearby dark matter (DM) halo. In this study, we adopt the decaying-DM model to interpret the 1.4 TeV peak. We found that the decay products of the local DM subhalo could contribute to the DMAPE peak with m (DM) = 3 TeV and tau 10(28) s. We also obtain constraints on DM lifetime and the distance of the local DM subhalo by comparison with DAMPE data.
Document Type期刊论文
2.School of Physics,Nanjing University
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Pan Xu,Zhang Cun,Feng Lei. interpretationofthedampe14tevpeakaccordingtothedecayingdarkmattermodel[J]. sciencechinaphysicsmechanicsastronomy,2018,61(10).
APA Pan Xu,Zhang Cun,&Feng Lei.(2018).interpretationofthedampe14tevpeakaccordingtothedecayingdarkmattermodel.sciencechinaphysicsmechanicsastronomy,61(10).
MLA Pan Xu,et al."interpretationofthedampe14tevpeakaccordingtothedecayingdarkmattermodel".sciencechinaphysicsmechanicsastronomy 61.10(2018).
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