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Leptonic CP asymmetry and Light flavored scalar

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arxiv 2110.11096 v3 pith:5XMG2JX2 submitted 2021-10-21 hep-ph

Yoshihiko Abe , Toshimasa Ito , Koichi Yoshioka This is my paper · ORCID
classification hep-ph
keywords asymmetrylightscalardecaygenerationleptonicright-handedboson
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We consider a situation where right-handed neutrinos couple to a light scalar which is possibly a Nambu-Goldstone boson resulting from high-energy symmetry breaking. Its coupling is typically complex-valued and flavor-dependent. In this work, we investigate the possibility of the leptonic asymmetry generation in the Universe from the right-handed neutrino decay to flavorful light scalar. Furthermore a new source of asymmetry generation from a single decay process is pointed out, which is characteristic of the present setting.

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Cited by 1 Pith paper

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  1. Two-component Dark Matter and low scale Thermal Leptogenesis

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A two-component dark matter extension of the scotogenic model in which both dark matter particles participate in the CP violation that generates the observed baryon asymmetry at the TeV scale.

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