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Leptogenesis from spontaneous symmetry breaking during inflation

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arxiv 1905.10537 v3 pith:2CTPP3DN submitted 2019-05-25 hep-ph

Yi-Peng Wu , Louis Yang , Alexander Kusenko This is my paper · ORCID
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keywords duringinflationbreakingfieldhiggssymmetryasymmetrybroken
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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.

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  1. Gauss-Bonnet-induced symmetry breaking/restoration during inflation

    hep-th 2025-02 conditional novelty 4.0 of 10

    A Gauss-Bonnet coupling can flip a scalar field's effective mass sign during inflation, triggering symmetry breaking or restoration mid-inflation while leaving the inflationary background and its CMB predictions essen...

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