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Gravitational waves from color restoration in a leptoquark model of radiative neutrino masses

Bertenstam, Mårten LU ; Finetti, Marco ; Morais, António P. LU ; Pasechnik, Roman LU and Rathsman, Johan LU (2025) In Journal of Cosmology and Astroparticle Physics 2025(8).
Abstract

We study the first-order phase transitions and the emerging stochastic gravitational wave spectrum in a minimal leptoquark extension of the Standard Model that explains active neutrino oscillation data, while satisfying current flavor physics constraints. This model exhibits diverse phase transition patterns, including color symmetry-breaking scenarios in the early Universe. Strong correlations between model parameters and gravitational-wave signals yield testable predictions for future experiments such as LISA, BBO, and DECIGO. Specifically, a detectable signal in the mHz-0.1 Hz frequency range features color-restoration and leptoquark masses near 1.5 TeV. With this article, we also present the first application in the literature of... (More)

We study the first-order phase transitions and the emerging stochastic gravitational wave spectrum in a minimal leptoquark extension of the Standard Model that explains active neutrino oscillation data, while satisfying current flavor physics constraints. This model exhibits diverse phase transition patterns, including color symmetry-breaking scenarios in the early Universe. Strong correlations between model parameters and gravitational-wave signals yield testable predictions for future experiments such as LISA, BBO, and DECIGO. Specifically, a detectable signal in the mHz-0.1 Hz frequency range features color-restoration and leptoquark masses near 1.5 TeV. With this article, we also present the first application in the literature of Dratopi. This is a soon-to-be-released tool for phase transition analysis using the dimensional reduction formalism, that interfaces the DRalgo package with Python and a slightly modified version of CosmoTransitions.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cosmological phase transitions, neutrino masses from cosmology, particle physics - cosmology connection, primordial gravitational waves (theory)
in
Journal of Cosmology and Astroparticle Physics
volume
2025
issue
8
article number
077
publisher
IOP Publishing
external identifiers
  • scopus:105014219898
ISSN
1475-7516
DOI
10.1088/1475-7516/2025/08/077
language
English
LU publication?
yes
id
255eae1b-ba2d-4216-9917-b70c4bdc4b23
date added to LUP
2025-11-07 10:39:05
date last changed
2025-11-07 10:39:58
@article{255eae1b-ba2d-4216-9917-b70c4bdc4b23,
  abstract     = {{<p>We study the first-order phase transitions and the emerging stochastic gravitational wave spectrum in a minimal leptoquark extension of the Standard Model that explains active neutrino oscillation data, while satisfying current flavor physics constraints. This model exhibits diverse phase transition patterns, including color symmetry-breaking scenarios in the early Universe. Strong correlations between model parameters and gravitational-wave signals yield testable predictions for future experiments such as LISA, BBO, and DECIGO. Specifically, a detectable signal in the mHz-0.1 Hz frequency range features color-restoration and leptoquark masses near 1.5 TeV. With this article, we also present the first application in the literature of Dratopi. This is a soon-to-be-released tool for phase transition analysis using the dimensional reduction formalism, that interfaces the DRalgo package with Python and a slightly modified version of CosmoTransitions.</p>}},
  author       = {{Bertenstam, Mårten and Finetti, Marco and Morais, António P. and Pasechnik, Roman and Rathsman, Johan}},
  issn         = {{1475-7516}},
  keywords     = {{cosmological phase transitions; neutrino masses from cosmology; particle physics - cosmology connection; primordial gravitational waves (theory)}},
  language     = {{eng}},
  number       = {{8}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Cosmology and Astroparticle Physics}},
  title        = {{Gravitational waves from color restoration in a leptoquark model of radiative neutrino masses}},
  url          = {{http://dx.doi.org/10.1088/1475-7516/2025/08/077}},
  doi          = {{10.1088/1475-7516/2025/08/077}},
  volume       = {{2025}},
  year         = {{2025}},
}