| Title: | Revising the full one-loop gauge prefactor in electroweak vacuum stability |
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| Authors: | ID Baratella, Pietro, Institut "Jožef Stefan" (Author)
ID Nemevšek, Miha, Institut "Jožef Stefan" (Author)
ID Shoji, Yutaro, Institut "Jožef Stefan" (Author)
ID Trailović, Katarina, Institut "Jožef Stefan" (Author)
ID Ubaldi, Lorenzo, Institut "Jožef Stefan" (Author) |
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| Files: |  PDF - Presentation file, download (641,69 KB)
MD5: CEA4F89DEDD3ECDC8FAA16FA7015EE66
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | We revisit the decay rate of the electroweak vacuum in the standard model with the full one-loop prefactor. We focus on the gauge degrees of freedom and derive the degeneracy factors appearing in the functional determinant using group theoretical arguments. Our treatment shows that the transverse modes were previously overcounted, so we revise the calculation of that part of the prefactor. The new result modifies the gauge fields’ contribution by 6% and slightly decreases the previously predicted lifetime of the electroweak vacuum, which remains much longer than the age of the Universe. Our discussion of the transverse mode degeneracy applies to any calculation of functional determinants involving gauge fields in four dimensions. |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 20.06.2024 |
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| Article acceptance date: | 04.12.2024 |
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| Publication date: | 02.01.2025 |
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| Publisher: | American Physical Society |
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| Year of publishing: | 2025 |
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| Number of pages: | 6 str. |
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| Numbering: | Vol. 134, Art. 011601 |
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| Source: | ZDA |
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| PID: | 20.500.12556/DiRROS-24528  |
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| UDC: | 53 |
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| ISSN on article: | 0031-9007 |
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| DOI: | 10.1103/PhysRevLett.134.011601 |
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| COBISS.SI-ID: | 221341187 |
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| Publication date in DiRROS: | 04.12.2025 |
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| Views: | 122 |
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| Downloads: | 40 |
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