Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/39836
Title: | Gravitational echoes of lepton number symmetry breaking with light and ultralight Majorons |
Author: | Addazi, Andrea Marcianò, Antonino Morais, António P. Pasechnik, Roman Viana, João Yang, Hao |
Keywords: | Cosmological phase transitions Cosmology of theories beyond the SM Neutrino theory Particle physics - cosmology connection |
Issue Date: | 1-Sep-2023 |
Publisher: | Institute of Physics Publishing |
Abstract: | We formulate a version of the low-scale Majoron model equipped with an inverse seesaw mechanism featuring lepton-number preserving dimension-6 operators in the scalar potential. Contrary to its dimension-4 counterpart, we find that the model can simultaneously provide light and ultralight Majorons, neutrino masses and their mixing, while featuring strong first-order cosmological phase transitions associated to the spontaneous breaking of the lepton number and the electroweak symmetries in the early Universe. We show by a detailed numerical analysis that under certain conditions on the parameter space accounted for in collider physics, the model can be probed via the primordial gravitational wave spectrum potentially observable at LISA and other planned facilities. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/39836 |
DOI: | |
ISSN: | 1475-7516 |
Appears in Collections: | CIDMA - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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1-s2.0-S0370269322002969-main.pdf | 6.46 MB | Adobe PDF | View/Open |
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