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Universal gravitational-wave signatures from heavy new physics in the electroweak sector

We calculate the gravitational-wave spectra produced by the electroweak phase transition with TeV-scale Beyond-Standard-Model physics in the early universe. Our study captures the effect of quantum and thermal fluctuations within a non-perturbative framework. We discover a universal relation between...

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Bibliographic Details
Main Authors: Eichhorn, Astrid (Author) , Lumma, Johannes (Author) , Pawlowski, Jan M. (Author) , Reichert, Manuel (Author) , Yamada, Masatoshi (Author)
Format: Article (Journal)
Language:English
Published: 3 May 2021
In: Journal of cosmology and astroparticle physics
Year: 2021, Issue: 5, Pages: ?
ISSN:1475-7516
DOI:10.1088/1475-7516/2021/05/006
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1475-7516/2021/05/006
Verlag, lizenzpflichtig, Volltext: https://iopscience.iop.org/article/10.1088/1475-7516/2021/05/006
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Author Notes:Astrid Eichhorn, Johannes Lumma, Jan M. Pawlowski, Manuel Reichert and Masatoshi Yamada
Description
Summary:We calculate the gravitational-wave spectra produced by the electroweak phase transition with TeV-scale Beyond-Standard-Model physics in the early universe. Our study captures the effect of quantum and thermal fluctuations within a non-perturbative framework. We discover a universal relation between the mean bubble separation and the strength parameter of the phase transition, which holds for a wide range of new-physics contributions. The ramifications of this result are three-fold: first, they constrain the gravitational-wave spectra resulting from heavy (TeV-scale) new physics. Second, they contribute to distinguishing heavy from light new physics directly from the gravitational-wave signature. Third, they suggest that a concerted effort of gravitational-wave observations together with collider experiments could be required to distinguish between different models of heavy new physics.
Item Description:Gesehen am 21.06.2021
Physical Description:Online Resource
ISSN:1475-7516
DOI:10.1088/1475-7516/2021/05/006

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