Baryogenesis, dark matter, and flavor structure in non-thermal moduli cosmology
Abstract
The appearance of scalar/moduli fields in the early universe, as motivated by string theory, naturally leads to non-thermal “moduli cosmology”. Such cosmology provides a consistent framework where the generation of radiation, baryons, and dark matter can occur while maintaining successful Big Bang Nucleosynthesis and avoiding the cosmological moduli problem. We present a relatively economical construction with moduli cosmology, building on a variety of string-inspired components (e.g. supersymmetry, discrete symmetries, Green-Schwarz anomaly cancellation). We address a range of outstanding problems of particle physics and cosmology simultaneously, including the fermion mass hierarchy and flavor puzzle, the smallness of neutrino masses, baryogenesis and dark matter. Our setup, based on discrete $$\mathbb{Z}^R_{12}$$ symmetry and anomalous U(1)A, is void of the usual issues plaguing the Minimal Supersymmetric Standard Model, i.e. the μ-problem and the overly-rapid proton decay due to dimension-4,-5 operators. The model is compatible with SU(5) Grand Unification. The smallness of Dirac neutrino masses is automatically established by requiring the cancellation of mixed gravitational-gauge anomalies. The decay of the moduli field provides a common origin for the baryon number and dark matter abundance, explaining the observed cosmic coincidences, ΩB ~ ΩDM.
- Authors:
-
- Univ. of California, Irvine, CA (United States)
- Univ. of California, Los Angeles, CA (United States)
- Publication Date:
- Research Org.:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- OSTI Identifier:
- 1611256
- Grant/Contract Number:
- SC0009937; PHY-1620638
- 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: 2019; Journal Issue: 5; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; physics; Beyond Standard Model; cosmology of theories beyond the SM; supersymmetric standard model
Citation Formats
Chen, Mu-Chun, and Takhistov, Volodymyr. Baryogenesis, dark matter, and flavor structure in non-thermal moduli cosmology. United States: N. p., 2019.
Web. doi:10.1007/jhep05(2019)101.
Chen, Mu-Chun, & Takhistov, Volodymyr. Baryogenesis, dark matter, and flavor structure in non-thermal moduli cosmology. United States. https://doi.org/10.1007/jhep05(2019)101
Chen, Mu-Chun, and Takhistov, Volodymyr. Mon .
"Baryogenesis, dark matter, and flavor structure in non-thermal moduli cosmology". United States. https://doi.org/10.1007/jhep05(2019)101. https://www.osti.gov/servlets/purl/1611256.
@article{osti_1611256,
title = {Baryogenesis, dark matter, and flavor structure in non-thermal moduli cosmology},
author = {Chen, Mu-Chun and Takhistov, Volodymyr},
abstractNote = {The appearance of scalar/moduli fields in the early universe, as motivated by string theory, naturally leads to non-thermal “moduli cosmology”. Such cosmology provides a consistent framework where the generation of radiation, baryons, and dark matter can occur while maintaining successful Big Bang Nucleosynthesis and avoiding the cosmological moduli problem. We present a relatively economical construction with moduli cosmology, building on a variety of string-inspired components (e.g. supersymmetry, discrete symmetries, Green-Schwarz anomaly cancellation). We address a range of outstanding problems of particle physics and cosmology simultaneously, including the fermion mass hierarchy and flavor puzzle, the smallness of neutrino masses, baryogenesis and dark matter. Our setup, based on discrete $\mathbb{Z}^R_{12}$ symmetry and anomalous U(1)A, is void of the usual issues plaguing the Minimal Supersymmetric Standard Model, i.e. the μ-problem and the overly-rapid proton decay due to dimension-4,-5 operators. The model is compatible with SU(5) Grand Unification. The smallness of Dirac neutrino masses is automatically established by requiring the cancellation of mixed gravitational-gauge anomalies. The decay of the moduli field provides a common origin for the baryon number and dark matter abundance, explaining the observed cosmic coincidences, ΩB ~ ΩDM.},
doi = {10.1007/jhep05(2019)101},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2019,
place = {United States},
year = {Mon May 20 00:00:00 EDT 2019},
month = {Mon May 20 00:00:00 EDT 2019}
}
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