gamma-Ray emission signals in the massive graviton mediated dark matter model
Zhang, Cun1,2; Cui, Ming-Yang1,2; Feng, Lei2; Fan, Yi-Zhong2; Ren, Zhong-Zhou1
Source PublicationNUCLEAR PHYSICS B
Corresponding AuthorFeng, Lei( ; Fan, Yi-Zhong( ; Ren, Zhong-Zhou(
AbstractDark matter may interact with Standard Model (SM) particle through the exchange of a massive spin-2 graviton producing signals that can be detected. In this work we examine the gamma-ray emission signals, including the line emission and the continuous spectrum component in such a massive graviton-mediated dark matter model. The constraints of LHC data, dark matter relic density as well as the dark matter indirect detection data have been applied to narrow down the parameter space. We focus on the vector dark matter model which could produce detectable gamma-ray line signal. It is found that the gamma-ray line data is effective on constraining the model parameters and the ongoing and upcoming space or ground-based gamma-ray experiments can constrain the model further. As for the continuous gamma-ray emission, the total effective annihilation cross section is similar to 10(-26) cm(3) s(-1) except at the region where dark matter mass is around the graviton mass or half of it, which is consistent with current observational data and will be reliably probed by the upcoming CTA. (C) 2017 The Authors. Published by Elsevier B.V.
Indexed BySCI
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000397371200009
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Document Type期刊论文
Corresponding AuthorFeng, Lei; Fan, Yi-Zhong; Ren, Zhong-Zhou
Affiliation1.Nanjing Univ, Sch Phys, Nanjing 210092, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Cun,Cui, Ming-Yang,Feng, Lei,et al. gamma-Ray emission signals in the massive graviton mediated dark matter model[J]. NUCLEAR PHYSICS B,2017,916:208-218.
APA Zhang, Cun,Cui, Ming-Yang,Feng, Lei,Fan, Yi-Zhong,&Ren, Zhong-Zhou.(2017).gamma-Ray emission signals in the massive graviton mediated dark matter model.NUCLEAR PHYSICS B,916,208-218.
MLA Zhang, Cun,et al."gamma-Ray emission signals in the massive graviton mediated dark matter model".NUCLEAR PHYSICS B 916(2017):208-218.
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