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Probing multi-step electroweak phase transition with multi-peaked primordial gravitational waves spectra

Morais, António P. LU and Pasechnik, Roman LU (2020) In Journal of Cosmology and Astroparticle Physics 2020(4).
Abstract

Multi-peaked spectra of the primordial gravitational waves are considered as a phenomenologically relevant source of information about the dynamics of sequential phase transitions in the early Universe. In particular, such signatures trace back to specific patterns of the first-order electroweak phase transition in the early Universe occurring in multiple steps. Such phenomena appear to be rather generic in multi-scalar extensions of the Standard Model. In a particularly simple extension of the Higgs sector, we have identified and studied the emergence of sequential long- and short-lasting transitions as well as their fundamental role in generation of multi-peaked structures in the primordial gravitational-wave spectrum. We discuss the... (More)

Multi-peaked spectra of the primordial gravitational waves are considered as a phenomenologically relevant source of information about the dynamics of sequential phase transitions in the early Universe. In particular, such signatures trace back to specific patterns of the first-order electroweak phase transition in the early Universe occurring in multiple steps. Such phenomena appear to be rather generic in multi-scalar extensions of the Standard Model. In a particularly simple extension of the Higgs sector, we have identified and studied the emergence of sequential long- and short-lasting transitions as well as their fundamental role in generation of multi-peaked structures in the primordial gravitational-wave spectrum. We discuss the potential detectability of these signatures by the proposed gravitational-wave interferometers.

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Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Cosmology and Astroparticle Physics
volume
2020
issue
4
article number
036
publisher
IOP Publishing
external identifiers
  • scopus:85088975879
ISSN
1475-7516
DOI
10.1088/1475-7516/2020/04/036
language
English
LU publication?
yes
id
0c55c0a1-5a14-4105-9f8d-8596a4d25f0c
date added to LUP
2020-08-13 11:31:50
date last changed
2022-12-24 00:37:40
@article{0c55c0a1-5a14-4105-9f8d-8596a4d25f0c,
  abstract     = {{<p>Multi-peaked spectra of the primordial gravitational waves are considered as a phenomenologically relevant source of information about the dynamics of sequential phase transitions in the early Universe. In particular, such signatures trace back to specific patterns of the first-order electroweak phase transition in the early Universe occurring in multiple steps. Such phenomena appear to be rather generic in multi-scalar extensions of the Standard Model. In a particularly simple extension of the Higgs sector, we have identified and studied the emergence of sequential long- and short-lasting transitions as well as their fundamental role in generation of multi-peaked structures in the primordial gravitational-wave spectrum. We discuss the potential detectability of these signatures by the proposed gravitational-wave interferometers.</p>}},
  author       = {{Morais, António P. and Pasechnik, Roman}},
  issn         = {{1475-7516}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Cosmology and Astroparticle Physics}},
  title        = {{Probing multi-step electroweak phase transition with multi-peaked primordial gravitational waves spectra}},
  url          = {{http://dx.doi.org/10.1088/1475-7516/2020/04/036}},
  doi          = {{10.1088/1475-7516/2020/04/036}},
  volume       = {{2020}},
  year         = {{2020}},
}