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Leptogenesis via inflaton mass terms in nonminimally coupled inflation

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Leptogenesis via inflaton mass terms in nonminimally coupled inflation. / Lloyd-Stubbs, K.; McDonald, J.
In: Physical Review D, Vol. 107, No. 10, 103511, 15.05.2023.

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Lloyd-Stubbs K, McDonald J. Leptogenesis via inflaton mass terms in nonminimally coupled inflation. Physical Review D. 2023 May 15;107(10):103511. Epub 2023 May 11. doi: 10.1103/PhysRevD.107.103511

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@article{38a6baea022d405fbf1d3820c0e711d9,
title = "Leptogenesis via inflaton mass terms in nonminimally coupled inflation",
abstract = "We consider a model of baryogenesis based on adding lepton number-violating quadratic mass terms to the inflaton potential of a nonminimally coupled inflation model. The L-violating mass terms generate a lepton asymmetry in a complex inflaton field via the mass term Affleck-Dine mechanism, which is transferred to the Standard Model (SM) sector when the inflaton decays to right-handed (RH) neutrinos. The model is minimal in that it requires only the SM sector, RH neutrinos, and a nonminimally coupled inflaton sector. We find that baryon isocurvature fluctuations can be observable in metric inflation but are negligible in Palatini inflation. The model is compatible with reheating temperatures that may be detectable in the observable primordial gravitational waves predicted by metric inflation",
author = "K. Lloyd-Stubbs and J. McDonald",
year = "2023",
month = may,
day = "15",
doi = "10.1103/PhysRevD.107.103511",
language = "English",
volume = "107",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Leptogenesis via inflaton mass terms in nonminimally coupled inflation

AU - Lloyd-Stubbs, K.

AU - McDonald, J.

PY - 2023/5/15

Y1 - 2023/5/15

N2 - We consider a model of baryogenesis based on adding lepton number-violating quadratic mass terms to the inflaton potential of a nonminimally coupled inflation model. The L-violating mass terms generate a lepton asymmetry in a complex inflaton field via the mass term Affleck-Dine mechanism, which is transferred to the Standard Model (SM) sector when the inflaton decays to right-handed (RH) neutrinos. The model is minimal in that it requires only the SM sector, RH neutrinos, and a nonminimally coupled inflaton sector. We find that baryon isocurvature fluctuations can be observable in metric inflation but are negligible in Palatini inflation. The model is compatible with reheating temperatures that may be detectable in the observable primordial gravitational waves predicted by metric inflation

AB - We consider a model of baryogenesis based on adding lepton number-violating quadratic mass terms to the inflaton potential of a nonminimally coupled inflation model. The L-violating mass terms generate a lepton asymmetry in a complex inflaton field via the mass term Affleck-Dine mechanism, which is transferred to the Standard Model (SM) sector when the inflaton decays to right-handed (RH) neutrinos. The model is minimal in that it requires only the SM sector, RH neutrinos, and a nonminimally coupled inflaton sector. We find that baryon isocurvature fluctuations can be observable in metric inflation but are negligible in Palatini inflation. The model is compatible with reheating temperatures that may be detectable in the observable primordial gravitational waves predicted by metric inflation

U2 - 10.1103/PhysRevD.107.103511

DO - 10.1103/PhysRevD.107.103511

M3 - Journal article

VL - 107

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 10

M1 - 103511

ER -