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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/2407.17526 |
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| _version_ | 1866908536171134976 |
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| author | Caputo, Andrea Gazit, Doron Hammer, Hans-Werner Kopp, Joachim Paz, Gil Perez, Gilad Springmann, Konstantin |
| author_facet | Caputo, Andrea Gazit, Doron Hammer, Hans-Werner Kopp, Joachim Paz, Gil Perez, Gilad Springmann, Konstantin |
| contents | The recent demonstration of laser excitation of the $\approx 8$ eV isomeric state of Thorium-229 is a significant step towards a nuclear clock. The low excitation energy likely results from a cancellation between electromagnetic and strong contributions, which new physics can disrupt. In this Letter, we quantify the enhancement of a nuclear clock's sensitivity to new physics using a geometric model and a novel $d$-wave halo model of the nucleus that reproduces measured differences between Thorium-229 states. We find likely enhancements of order $10^4$ while a worst case scenario with enhancement $\ll 1$ is unlikely. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_17526 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On the sensitivity of nuclear clocks to new physics Caputo, Andrea Gazit, Doron Hammer, Hans-Werner Kopp, Joachim Paz, Gil Perez, Gilad Springmann, Konstantin High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory The recent demonstration of laser excitation of the $\approx 8$ eV isomeric state of Thorium-229 is a significant step towards a nuclear clock. The low excitation energy likely results from a cancellation between electromagnetic and strong contributions, which new physics can disrupt. In this Letter, we quantify the enhancement of a nuclear clock's sensitivity to new physics using a geometric model and a novel $d$-wave halo model of the nucleus that reproduces measured differences between Thorium-229 states. We find likely enhancements of order $10^4$ while a worst case scenario with enhancement $\ll 1$ is unlikely. |
| title | On the sensitivity of nuclear clocks to new physics |
| topic | High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2407.17526 |