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Axion inflation, proton decay, and leptogenesis in SU (5) x U(1)(PQ)
KTH, Skolan för teknikvetenskap (SCI), Fysik.
Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA..
2018 (engelsk)Inngår i: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 97, nr 7, artikkel-id 075012Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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 x 10(34)-3 x 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.

sted, utgiver, år, opplag, sider
American Physical Society, 2018. Vol. 97, nr 7, artikkel-id 075012
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Identifikatorer
URN: urn:nbn:se:kth:diva-226760DOI: 10.1103/PhysRevD.97.075012ISI: 000429775500006Scopus ID: 2-s2.0-85046825540OAI: oai:DiVA.org:kth-226760DiVA, id: diva2:1203761
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QC 20180504

Tilgjengelig fra: 2018-05-04 Laget: 2018-05-04 Sist oppdatert: 2018-05-30bibliografisk kontrollert

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Boucenna, Sofiane M.
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