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arXiv · 2101.12498

Neutrinoless double beta decays tell nature of right-handed neutrinos

Takehiko Asaka·Hiroyuki Ishida·Kazuki Tanaka
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Abstract

We consider the minimal seesaw model, the Standard Model extended by two right-handed neutrinos, for explaining the neutrino masses and mixing angles measured in oscillation experiments. When one of right-handed neutrinos is lighter than the electroweak scale, it can give a sizable contribution to neutrinoless double beta ($0\nu \beta \beta$) decay. We show that the detection of the $0 \nu \beta \beta$ decay by future experiments gives a significant implication to the search for such light right-handed neutrino.

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Takehiko Asaka, Hiroyuki Ishida, Kazuki Tanaka. 2021-01-29. Neutrinoless double beta decays tell nature of right-handed neutrinos. https://doi.org/10.1007/jhep07(2023)062

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