Journal
PHYSICAL REVIEW D
Volume 106, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.106.075006
Keywords
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Funding
- European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie [860881-HIDDeN]
- DOE at the University of Minnesota [DE-SC0011842]
- IN2P3 Master Projet UCMN
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This paper considers the generation of the baryon asymmetry through gravitational scattering, focusing on the reheating process of right-handed neutrinos. The study finds that a sufficient asymmetry can be generated under various conditions. Additionally, it is discovered that gravitational scattering can also produce Standard Model Higgs bosons, which is 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.
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