The cosmology of ultralight scalar dark matter coupled to right-handed neutrinos
Journal Article
·
· Journal of High Energy Physics
- California Institute of Technology, Pasadena, CA (United States)
We consider ultralight scalar dark matter that couples to right-handed neutrinos. Due to the high density of neutrinos in the early universe, the background neutrino density dominates the dynamics of the scalar field, and qualitatively alters the field’s cosmological evolution. This effect has not been included in previous literature, and changes the interpretation of cosmological data and its interplay with laboratory experiments. To illustrate these points a simplified model of a 1 + 1 setup with a single scalar field is analyzed.
- Research Organization:
- California Institute of Technology, Pasadena, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-07CH11359; SC0011632
- OSTI ID:
- 3005993
- Journal Information:
- Journal of High Energy Physics, Journal Name: Journal of High Energy Physics Journal Issue: 7 Vol. 2025; ISSN 1029-8479
- Publisher:
- Springer Science and Business Media LLCCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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