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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.09842 |
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| _version_ | 1866911000275451904 |
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| author | Mirbabayi, Mehrdad Villadoro, Giovanni |
| author_facet | Mirbabayi, Mehrdad Villadoro, Giovanni |
| contents | Sometimes a local minimum is known to be a metastable vacuum inside the low-energy EFT, but the true vacuum lies outside, and the bounce solution mediating the decay cannot be found. For single-field decay, Espinosa has proposed a family of configurations called ``pseudo-bounces'' as a way to constrain the decay rate. They are parametrized by the central field value $Φ_0$ and constructed without the knowledge of the true vacuum. We prove that the pseudo-bounce family has a monotonically decreasing decay exponent whose end point and minimum is the bounce action, and this continues to hold when gravitational effects are non-negligible. We then use this to estimate the decay rate (in the radion direction) of the promised AdS$_3$ vacuum of the Standard Model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_09842 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An infrared bound on the ultraviolet bounce Mirbabayi, Mehrdad Villadoro, Giovanni High Energy Physics - Theory High Energy Physics - Phenomenology Sometimes a local minimum is known to be a metastable vacuum inside the low-energy EFT, but the true vacuum lies outside, and the bounce solution mediating the decay cannot be found. For single-field decay, Espinosa has proposed a family of configurations called ``pseudo-bounces'' as a way to constrain the decay rate. They are parametrized by the central field value $Φ_0$ and constructed without the knowledge of the true vacuum. We prove that the pseudo-bounce family has a monotonically decreasing decay exponent whose end point and minimum is the bounce action, and this continues to hold when gravitational effects are non-negligible. We then use this to estimate the decay rate (in the radion direction) of the promised AdS$_3$ vacuum of the Standard Model. |
| title | An infrared bound on the ultraviolet bounce |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.09842 |