Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.01585 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912409489244160 |
|---|---|
| author | Li, Xu-Xiang Ramsey-Musolf, Michael J. Tenkanen, Tuomas V. I. Wu, Yanda |
| author_facet | Li, Xu-Xiang Ramsey-Musolf, Michael J. Tenkanen, Tuomas V. I. Wu, Yanda |
| contents | Using thermal effective field theory, we present a self-consistent perturbative formulation of the Higgs phase sphaleron rate after a radiatively-induced first-order phase transition. This gauge-invariant formulation is based on dimensionally reduced effective field theory (3D EFT) at high temperatures and paves a way for including higher order corrections within the 3D EFT perturbation theory without double counting. Concretely, we compute the Higgs phase sphaleron rate in a semi-classical approximation within the two-loop resummed 3D EFT. We find compact results for the sphaleron rate and the baryon washout factor as well as criteria for the baryon number preservation by providing a clear connection to the results obtained using a similar 3D EFT description for the bubble nucleation. We demonstrate these calculations for the real triplet-extended Standard Model, and conclude that when all two-loop thermal effects for the matching are accounted, no sufficiently strong one-step electroweak phase transitions exist within the parameter space regime that can be mapped onto the 3D EFT we have considered. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_01585 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An Effective Sphaleron Awakens Li, Xu-Xiang Ramsey-Musolf, Michael J. Tenkanen, Tuomas V. I. Wu, Yanda High Energy Physics - Phenomenology Using thermal effective field theory, we present a self-consistent perturbative formulation of the Higgs phase sphaleron rate after a radiatively-induced first-order phase transition. This gauge-invariant formulation is based on dimensionally reduced effective field theory (3D EFT) at high temperatures and paves a way for including higher order corrections within the 3D EFT perturbation theory without double counting. Concretely, we compute the Higgs phase sphaleron rate in a semi-classical approximation within the two-loop resummed 3D EFT. We find compact results for the sphaleron rate and the baryon washout factor as well as criteria for the baryon number preservation by providing a clear connection to the results obtained using a similar 3D EFT description for the bubble nucleation. We demonstrate these calculations for the real triplet-extended Standard Model, and conclude that when all two-loop thermal effects for the matching are accounted, no sufficiently strong one-step electroweak phase transitions exist within the parameter space regime that can be mapped onto the 3D EFT we have considered. |
| title | An Effective Sphaleron Awakens |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.01585 |