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Du, Yong1; Huang, Fei2; Li, Hao-Lin; Yu, Jiang-Hao
Freeze-in dark matter from secret neutrino interactions
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordSCALE MAJORON CONSTRAINTS
AbstractWe investigate a simplified freeze-in dark-matter model in which the dark matter only interacts with the standard-model neutrinos via a light scalar. The extremely small coupling for the freeze-in mechanism is naturally realized in several neutrino-portal scenarios with the secret neutrino interactions. We study possible evolution history of the hidden sector: the dark sector would undergo pure freeze-in production if the interactions between the dark-sector particles are negligible, while thermal equilibrium within the dark sector could occur if the reannihilation of the dark matter and the scalar mediator is rapid enough. We investigate the relic abundance in the freeze-in and dark freeze-out regimes, calculate evolution of the dark temperature, and study its phenomenological aspects on BBN and CMB constraints, the indirect-detection signature, as well as the potential to solve the small scale structure problem.
2020
ISSN1029-8479
Issue12Pages:207
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP12(2020)207
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27327
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
2.Univ Massachusetts Amherst, Amherst Ctr Fundamental Interact, Dept Phys, Amherst, MA 01003 USA
3.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
5.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
6.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Du, Yong,Huang, Fei,Li, Hao-Lin,et al. Freeze-in dark matter from secret neutrino interactions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(12):207.
APA Du, Yong,Huang, Fei,Li, Hao-Lin,&Yu, Jiang-Hao.(2020).Freeze-in dark matter from secret neutrino interactions.JOURNAL OF HIGH ENERGY PHYSICS(12),207.
MLA Du, Yong,et al."Freeze-in dark matter from secret neutrino interactions".JOURNAL OF HIGH ENERGY PHYSICS .12(2020):207.
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