Leptogenesis from spontaneous symmetry breaking during inflation

Leptogenesis from spontaneous symmetry breaking during inflation

Abstract Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectation value (VEV) during inflation. After inflation is over, the Higgs field must relax to the minimum of its effe...

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Bibliographic Details
Main Authors: Yi-Peng Wu, Louis Yang, Alexander Kusenko
Format: Article
Language:English
Published: SpringerOpen 2019-12-01
Series:Journal of High Energy Physics
Subjects:
Cosmology of Theories beyond the SM
Spontaneous Symmetry Breaking
CP violation
Higgs Physics
Online Access:https://doi.org/10.1007/JHEP12(2019)088
Description
Summary:Abstract Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectation value (VEV) during inflation. After inflation is over, the Higgs field must relax to the minimum of its effective potential, creating an era in which the CPT is effectively broken by the time-depended VEV. We show that the matter-antimatter asymmetry can be generated during this relaxation epoch.
ISSN:1029-8479

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