Axion inflation, proton decay, and leptogenesis in
Journal Article
·
· Physical Review. D.
We implement inflation in a nonsupersymmetric SU(5) model based on a nonminimal coupling of the axion field to gravity. The isocurvature fluctuations are adequately suppressed, axions comprise the dark matter, proton lifetime estimates are of order 8 × 1034–3 × 1035 yr, and the observed baryon asymmetry arises via nonthermal leptogenesis. The presence of low-scale colored scalars ensures unification of the Standard Model gauge couplings and also helps in stabilizing the electroweak vacuum.
- Research Organization:
- Univ. of Delaware, Newark, DE (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0013880
- OSTI ID:
- 1432912
- Alternate ID(s):
- OSTI ID: 1503865
- Journal Information:
- Physical Review. D., Journal Name: Physical Review. D. Vol. 97 Journal Issue: 7; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 18 works
Citation information provided by
Web of Science
Web of Science
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