Gravitational waves from supercooled phase transitions in conformal Majoron models of neutrino mass
(2025) In Journal of High Energy Physics 2025(2).- Abstract
We study supercooled first-order phase transitions above the QCD scale in a wide class of conformal Majoron-like U(1)′ models that explain the totality of active neutrino oscillation data and produce a detectable stochastic gravitational wave background (SGWB) at LIGO, LISA and ET. We place constraints on the U(1)′ breaking scale and gauge coupling using current LIGO-Virgo-Kagra data. We find that strong supercooling can be ruled out in large regions of parameter space if a SGWB is not detected by these experiments. A null signal at LIGO and ET will disfavor a type-I seesaw scale above 1014 GeV, while a positive signal is a signature of heavy right-handed neutrinos. On the other hand, LISA will be sensitive to seesaw scales... (More)
We study supercooled first-order phase transitions above the QCD scale in a wide class of conformal Majoron-like U(1)′ models that explain the totality of active neutrino oscillation data and produce a detectable stochastic gravitational wave background (SGWB) at LIGO, LISA and ET. We place constraints on the U(1)′ breaking scale and gauge coupling using current LIGO-Virgo-Kagra data. We find that strong supercooling can be ruled out in large regions of parameter space if a SGWB is not detected by these experiments. A null signal at LIGO and ET will disfavor a type-I seesaw scale above 1014 GeV, while a positive signal is a signature of heavy right-handed neutrinos. On the other hand, LISA will be sensitive to seesaw scales as low as a TeV, and could detect a SGWB even if the right-handed neutrinos are decoupled.
(Less)
- author
- Gonçalves, João LU ; Marfatia, Danny ; Morais, António P. LU and Pasechnik, Roman LU
- organization
- publishing date
- 2025-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Early Universe Particle Physics, New Gauge Interactions, Phase Transitions in the Early Universe, Sterile or Heavy Neutrinos
- in
- Journal of High Energy Physics
- volume
- 2025
- issue
- 2
- article number
- 110
- publisher
- Springer
- external identifiers
-
- scopus:86000000984
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP02(2025)110
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © The Author(s) 2025.
- id
- 855437b6-e1b5-41d4-b881-4295792431d9
- date added to LUP
- 2025-06-23 16:02:19
- date last changed
- 2025-06-23 16:03:20
@article{855437b6-e1b5-41d4-b881-4295792431d9,
abstract = {{<p>We study supercooled first-order phase transitions above the QCD scale in a wide class of conformal Majoron-like U(1)′ models that explain the totality of active neutrino oscillation data and produce a detectable stochastic gravitational wave background (SGWB) at LIGO, LISA and ET. We place constraints on the U(1)′ breaking scale and gauge coupling using current LIGO-Virgo-Kagra data. We find that strong supercooling can be ruled out in large regions of parameter space if a SGWB is not detected by these experiments. A null signal at LIGO and ET will disfavor a type-I seesaw scale above 10<sup>14</sup> GeV, while a positive signal is a signature of heavy right-handed neutrinos. On the other hand, LISA will be sensitive to seesaw scales as low as a TeV, and could detect a SGWB even if the right-handed neutrinos are decoupled.</p>}},
author = {{Gonçalves, João and Marfatia, Danny and Morais, António P. and Pasechnik, Roman}},
issn = {{1029-8479}},
keywords = {{Early Universe Particle Physics; New Gauge Interactions; Phase Transitions in the Early Universe; Sterile or Heavy Neutrinos}},
language = {{eng}},
number = {{2}},
publisher = {{Springer}},
series = {{Journal of High Energy Physics}},
title = {{Gravitational waves from supercooled phase transitions in conformal Majoron models of neutrino mass}},
url = {{http://dx.doi.org/10.1007/JHEP02(2025)110}},
doi = {{10.1007/JHEP02(2025)110}},
volume = {{2025}},
year = {{2025}},
}