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arXiv · hep-ph/9303243

Constraints from Nucleosynthesis and SN1987A on Majoron Emitting Double Beta Decay

Sanghyeon Chang·Kiwoon Choi
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Abstract

We examine whether observable majoron emission in double beta decay can be compatible with the big-bang nucleosynthesis (NS) and the observed neutrino flux from SN1987A. It is found that the NS upper bound on $^4$He abundance implies that the majoron-neutrino Yukawa coupling constant $g\leq 9\times 10^{-6}$ and its maximal value is allowed only when the scalar quartic coupling constant $λ$ is extremely small, $λ\leq 100g^2$. It is also observed that, although quite less restrictive, SN1987A also provides independent constraints on coupling constants.

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Sanghyeon Chang, Kiwoon Choi. 1993-03-11. Constraints from Nucleosynthesis and SN1987A on Majoron Emitting Double Beta Decay. https://doi.org/10.1103/physrevd.49.12

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