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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.16304 |
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| _version_ | 1866910939909980160 |
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| author | Girmohanta, Sudhakantha Nakai, Yuichiro Qiu, Yu-Cheng Zhang, Zhihao |
| author_facet | Girmohanta, Sudhakantha Nakai, Yuichiro Qiu, Yu-Cheng Zhang, Zhihao |
| contents | The dilaton emerges as a pseudo-Nambu-Goldstone boson (pNGB) associated with the spontaneous breaking of scale invariance in a nearly conformal field theory (CFT). We show the existence of a wiggly dilaton potential that contains multiple vacuum solutions in a five-dimensional (5D) holographic formulation. The wiggly feature originates from boundary potentials of a 5D axion-like scalar field, whose naturally small bulk mass parameter corresponds to a marginally-relevant deformation of the dual CFT. Depending on the energy density of a boundary 3-brane, our model can provide a relaxion potential or generate a light dilaton. However, an extremely light dilaton requires fine-tuning. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_16304 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Wiggly dilaton: a landscape of spontaneously broken scale invariance Girmohanta, Sudhakantha Nakai, Yuichiro Qiu, Yu-Cheng Zhang, Zhihao High Energy Physics - Theory High Energy Physics - Phenomenology The dilaton emerges as a pseudo-Nambu-Goldstone boson (pNGB) associated with the spontaneous breaking of scale invariance in a nearly conformal field theory (CFT). We show the existence of a wiggly dilaton potential that contains multiple vacuum solutions in a five-dimensional (5D) holographic formulation. The wiggly feature originates from boundary potentials of a 5D axion-like scalar field, whose naturally small bulk mass parameter corresponds to a marginally-relevant deformation of the dual CFT. Depending on the energy density of a boundary 3-brane, our model can provide a relaxion potential or generate a light dilaton. However, an extremely light dilaton requires fine-tuning. |
| title | Wiggly dilaton: a landscape of spontaneously broken scale invariance |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.16304 |