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Title: Axion inflation, proton decay, and leptogenesis in S U ( 5 ) × U ( 1 ) P Q

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
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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