skip to main content

DOE PAGESDOE PAGES

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

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 × 10 34–3 × 10 35 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.
Authors:
 [1] ;  [2]
  1. KTH Royal Inst. of Technology, Stockholm (Sweden); AlbaNova Univ. Center, Stockholm (Sweden)
  2. Univ. of Delaware, Newark, DE (United States)
Publication Date:
Grant/Contract Number:
SC0013880
Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1432912
Alternate Identifier(s):
OSTI ID: 1503865

Boucenna, Sofiane M., and Shafi, Qaisar. Axion inflation, proton decay, and leptogenesis in SU(5)×U(1)PQ. United States: N. p., Web. doi:10.1103/physrevd.97.075012.
Boucenna, Sofiane M., & Shafi, Qaisar. Axion inflation, proton decay, and leptogenesis in SU(5)×U(1)PQ. United States. doi:10.1103/physrevd.97.075012.
Boucenna, Sofiane M., and Shafi, Qaisar. 2018. "Axion inflation, proton decay, and leptogenesis in SU(5)×U(1)PQ". United States. doi:10.1103/physrevd.97.075012.
@article{osti_1432912,
title = {Axion inflation, proton decay, and leptogenesis in SU(5)×U(1)PQ},
author = {Boucenna, Sofiane M. and Shafi, Qaisar},
abstractNote = {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.},
doi = {10.1103/physrevd.97.075012},
journal = {Physical Review D},
number = 7,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}