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Inflationary Gravitational Leptogenesis
We consider the generation of the baryon asymmetry in models with right-handed neutrinos produced through gravitational scattering of the inflaton during reheating. The right-handed neutrinos later decay and generate a lepton asymmetry, which is partially converted to a baryon asymmetry by Standard...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2022
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Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.106.075006 http://cds.cern.ch/record/2808716 |
_version_ | 1780973108852686848 |
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author | Co, Raymond T. Mambrini, Yann Olive, Keith A. |
author_facet | Co, Raymond T. Mambrini, Yann Olive, Keith A. |
author_sort | Co, Raymond T. |
collection | CERN |
description | We consider the generation of the baryon asymmetry in models with right-handed neutrinos produced through gravitational scattering of the inflaton during reheating. The right-handed neutrinos later decay and generate a lepton asymmetry, which is partially converted to a baryon asymmetry by Standard Model sphaleron processes. We find that a sufficient asymmetry can be generated for a wide range of right-handed neutrino masses and reheating temperatures. We also show that the same type of gravitational scattering produces Standard Model Higgs bosons, which can achieve inflationary reheating consistent with the production of a baryon asymmetry. |
id | cern-2808716 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28087162023-10-04T07:56:55Zdoi:10.1103/PhysRevD.106.075006http://cds.cern.ch/record/2808716engCo, Raymond T.Mambrini, YannOlive, Keith A.Inflationary Gravitational LeptogenesisAstrophysics and AstronomyParticle Physics - PhenomenologyWe consider the generation of the baryon asymmetry in models with right-handed neutrinos produced through gravitational scattering of the inflaton during reheating. The right-handed neutrinos later decay and generate a lepton asymmetry, which is partially converted to a baryon asymmetry by Standard Model sphaleron processes. We find that a sufficient asymmetry can be generated for a wide range of right-handed neutrino masses and reheating temperatures. We also show that the same type of gravitational scattering produces Standard Model Higgs bosons, which can achieve inflationary reheating consistent with the production of a baryon asymmetry.We consider the generation of the baryon asymmetry in models with right-handed neutrinos produced through gravitational scattering of the inflaton during reheating. The right-handed neutrinos later decay and generate a lepton asymmetry, which is partially converted to a baryon asymmetry by Standard Model sphaleron processes. We find that a sufficient asymmetry can be generated for a wide range of right-handed neutrino masses and reheating temperatures. We also show that the same type of gravitational scattering produces Standard Model Higgs bosons, which can achieve inflationary reheating consistent with the production of a baryon asymmetry.arXiv:2205.01689CERN-TH-2022-071UMN-TH-4121/22FTPI-MINN-22/12oai:cds.cern.ch:28087162022-05-03 |
spellingShingle | Astrophysics and Astronomy Particle Physics - Phenomenology Co, Raymond T. Mambrini, Yann Olive, Keith A. Inflationary Gravitational Leptogenesis |
title | Inflationary Gravitational Leptogenesis |
title_full | Inflationary Gravitational Leptogenesis |
title_fullStr | Inflationary Gravitational Leptogenesis |
title_full_unstemmed | Inflationary Gravitational Leptogenesis |
title_short | Inflationary Gravitational Leptogenesis |
title_sort | inflationary gravitational leptogenesis |
topic | Astrophysics and Astronomy Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1103/PhysRevD.106.075006 http://cds.cern.ch/record/2808716 |
work_keys_str_mv | AT coraymondt inflationarygravitationalleptogenesis AT mambriniyann inflationarygravitationalleptogenesis AT olivekeitha inflationarygravitationalleptogenesis |