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arXiv · 1705.08346

Limiting Majoron self-interactions from Gravitational waves experiments

Andrea Addazi·Antonino Marciano
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Abstract

We show how Majoron models may be tested/limited in gravitational waves experiments. In particular, the Majoron self-interaction potential may induce a first order phase transition, producing gravitational waves from bubble collisions. We dubbed such a new scenario {\it violent Majoron model}, because it would be associated to a violent phase transition in the early Universe. Sphaleron constraints can be avoided if the global $U(1)_{B-L}$ is broken at scales lower than the electroweak scale, provided that the B-L spontaneously breaking scale is lower than $10\, {\rm TeV}$ in order to satisfy the cosmological mass density bound. The possibility of a sub-electroweak phase transition is practically unconstrained by cosmological bounds and it may be detected within the sensitivity of next generation of gravitational waves experiments: eLISA, DECIGO and BBO. We also comment on the possible detection in CEPC collider, where Majorons's production can be observed from Higgs' portals in missing transverse energy channels.

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Andrea Addazi, Antonino Marciano. 2017-11-21. Limiting Majoron self-interactions from Gravitational waves experiments. https://doi.org/10.1088/1674-1137%2F42%2F2%2F023105

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