Higgs vacuum decay in a braneworld
We examine the effect of large extra dimensions on vacuum decay in the Randall–Sundrum (RS) braneworld paradigm. We assume the scalar field is confined to the brane, and compute the probability for forming an “anti-de Sitter” (AdS) bubble inside a critical flat RS brane. We present the first full nu...
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| Veröffentlicht in: | International journal of modern physics. D, Gravitation, astrophysics, cosmology Gravitation, astrophysics, cosmology, 2020-01, Vol.29 (1), p.2050005 |
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| container_title | International journal of modern physics. D, Gravitation, astrophysics, cosmology |
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| creator | Cuspinera, Leopoldo Gregory, Ruth Marshall, Katie M. Moss, Ian G. |
| description | We examine the effect of large extra dimensions on vacuum decay in the Randall–Sundrum (RS) braneworld paradigm. We assume the scalar field is confined to the brane, and compute the probability for forming an “anti-de Sitter” (AdS) bubble inside a critical flat RS brane. We present the first full numerical solutions for the brane instanton considering two test potentials for the scalar field. We explore the geometrical impact of thin and thick bubble walls, and compute the instanton action in a range of cases. We conclude by commenting on a more physically realistic potential relevant for the Standard Model Higgs. For bubbles with large backreaction, the extra dimension has a dramatic effect on the tunnelling rate, however, for the weakly backreacting bubbles more relevant for realistic Standard Model potentials, the extra dimension has little impact. |
| doi_str_mv | 10.1142/S0218271820500054 |
| format | Article |
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| identifier | ISSN: 0218-2718 |
| ispartof | International journal of modern physics. D, Gravitation, astrophysics, cosmology, 2020-01, Vol.29 (1), p.2050005 |
| issn | 0218-2718 1793-6594 |
| language | eng |
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| source | World Scientific Open |
| subjects | Bubbles Decay Instantons Scalars |
| title | Higgs vacuum decay in a braneworld |
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