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arXiv · 1510.07822

Spontaneous Baryogenesis from Asymmetric Inflaton

Fuminobu Takahashi·Masaki Yamada
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Abstract

We propose a variant scenario of spontaneous baryogenesis from asymmetric inflaton based on current-current interactions between the inflaton and matter fields with a non-zero B-L charge. When the inflaton starts to oscillate around the minimum after inflation, it may lead to excitation of a CP-odd component, which induces an effective chemical potential for the B-L number through the current-current interactions. We study concrete inflation models and show that the spontaneous baryogenesis scenario can be naturally implemented in the chaotic inflation in supergravity.

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Fuminobu Takahashi, Masaki Yamada. 2015-10-27. Spontaneous Baryogenesis from Asymmetric Inflaton. https://doi.org/10.1016/j.physletb.2016.03.020

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