OLIVER GOULD OLIVER.GOULD@NOTTINGHAM.AC.UK
Dorothy Hodgkin Fellow
Higher orders for cosmological phase transitions: a global study in a Yukawa model
Gould, Oliver; Xie, Cheng
Authors
Cheng Xie
Abstract
We perform a state-of-the-art global study of the cosmological thermal histories of a simple Yukawa model, and find higher perturbative orders to be important for determining both the presence and strength of strong first-order phase transitions. Using high-temperature effective field theory, we calculate the free energy density of the model up to O(y5T4), where y is the Yukawa coupling and T is the temperature. The locations of phase transitions are found using the results of lattice Monte-Carlo simulations, and the strength of first-order transitions are evaluated within perturbation theory, to 3-loop order. This is the first global study of any model at this order. Compared to a vanilla 1-loop analysis, accurate to O(y2T4), reaching such accuracy enables on average a five-fold reduction in the relative uncertainty in the predicted critical temperature Tc, and an additional ∼ 50% strong first-order transitions with latent heat L/Tc4> 0.1 to be identified in our scan.
Citation
Gould, O., & Xie, C. (2023). Higher orders for cosmological phase transitions: a global study in a Yukawa model. Journal of High Energy Physics, 2023(12), Article 49. https://doi.org/10.1007/jhep12%282023%29049
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 25, 2023 |
Online Publication Date | Dec 7, 2023 |
Publication Date | Dec 7, 2023 |
Deposit Date | Dec 16, 2023 |
Publicly Available Date | Dec 18, 2023 |
Journal | Journal of High Energy Physics |
Electronic ISSN | 1029-8479 |
Publisher | Springer Verlag |
Peer Reviewed | Peer Reviewed |
Volume | 2023 |
Issue | 12 |
Article Number | 49 |
DOI | https://doi.org/10.1007/jhep12%282023%29049 |
Keywords | Thermal Field Theory, Effective Field Theories, Phase Transitions in the Early Universe, Cosmology of Theories BSM |
Public URL | https://nottingham-repository.worktribe.com/output/28434208 |
Publisher URL | https://link.springer.com/article/10.1007/JHEP12(2023)049 |
Additional Information | Received: 5 October 2023; Accepted: 25 November 2023; First Online: 7 December 2023. Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
Files
JHEP12(2023)049
(6.3 Mb)
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Publisher Licence URL
https://creativecommons.org/licenses/by-sa/4.0/
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