Probing multi-step electroweak phase transition with multi-peaked primordial gravitational waves spectra
(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.
(Less)
- author
- Morais, António P. LU and Pasechnik, Roman LU
- organization
- publishing date
- 2020
- 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}}, }