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Title: Freeze-in dark matter from secret neutrino interactions

Abstract

We 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.

Authors:
 [1];  [2];  [3];  [4]
+ Show Author Affiliations
  1. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Massachusetts, Amherst, MA (United States)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of California, Irvine, CA (United States)
  3. Chinese Academy of Sciences (CAS), Beijing (China)
  4. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of the Chinese Academy of Sciences, Beijing (China); Univ. of the Chinese Academy of Sciences, Hangzhou (China); International Centre for Theoretical Physics Asia-Pacific, Beijing/Hangzhou (China)
Publication Date:
Research Org.:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences; National Science Foundation of China
OSTI Identifier:
1851474
Grant/Contract Number:  
SC0011095; 11947302; 11690022; 11851302; 11675243; 11761141011; XDB2101200; XDB23000000; 11875003
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2020; Journal Issue: 12; Journal ID: ISSN 1029-8479
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; beyond standard model; cosmology of theories beyond the SM; neutrino physics

Citation Formats

Du, Yong, Huang, Fei, Li, Hao-Lin, and Yu, Jiang-Hao. Freeze-in dark matter from secret neutrino interactions. United States: N. p., 2020. Web. doi:10.1007/jhep12(2020)207.
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Du, Yong, Huang, Fei, Li, Hao-Lin, & Yu, Jiang-Hao. Freeze-in dark matter from secret neutrino interactions. United States. https://doi.org/10.1007/jhep12(2020)207
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Du, Yong, Huang, Fei, Li, Hao-Lin, and Yu, Jiang-Hao. Thu . "Freeze-in dark matter from secret neutrino interactions". United States. https://doi.org/10.1007/jhep12(2020)207. https://www.osti.gov/servlets/purl/1851474.
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@article{osti_1851474,
title = {Freeze-in dark matter from secret neutrino interactions},
author = {Du, Yong and Huang, Fei and Li, Hao-Lin and Yu, Jiang-Hao},
abstractNote = {We 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.},
doi = {10.1007/jhep12(2020)207},
journal = {Journal of High Energy Physics (Online)},
number = 12,
volume = 2020,
place = {United States},
year = {Thu Dec 31 00:00:00 EST 2020},
month = {Thu Dec 31 00:00:00 EST 2020}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1007/jhep12(2020)207
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