Nuclear Schiff moment of fluorine isotope $^{19}$F
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912931129589760 |
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| author | Ng, Kia Boon Foster, Stephan Cheng, Lan Navratil, Petr Malbrunot-Ettenauer, Stephan |
| author_facet | Ng, Kia Boon Foster, Stephan Cheng, Lan Navratil, Petr Malbrunot-Ettenauer, Stephan |
| contents | Nuclear Schiff moments (NSMs) are sensitive probes for physics beyond the Standard Model of particle physics, signaling violations of time-reversal and parity-inversion symmetries in atomic nuclei. In this Letter, we report the first-ever calculation of a NSM in a nuclear ab initio framework, employing the no-core shell model to study the fluorine isotope $^{19}$F. We further perform quantum-chemistry calculations to evaluate the sensitivity of the hafnium monofluoride cation, HfF$^+$, to the NSM of $^{19}$F. Combined with recent high-precision measurements of the molecular electric dipole moment of HfF$^+$, our results enable the first experimental bound on the NSM of $^{19}$F. Although the resulting bounds on the pion-nucleon-nucleon ($π$NN) coupling constants are not yet the most stringent, this work establishes the foundation for constraining $π$NN interactions using nuclear ab initio methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_19811 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nuclear Schiff moment of fluorine isotope $^{19}$F Ng, Kia Boon Foster, Stephan Cheng, Lan Navratil, Petr Malbrunot-Ettenauer, Stephan Nuclear Theory Atomic Physics Computational Physics Nuclear Schiff moments (NSMs) are sensitive probes for physics beyond the Standard Model of particle physics, signaling violations of time-reversal and parity-inversion symmetries in atomic nuclei. In this Letter, we report the first-ever calculation of a NSM in a nuclear ab initio framework, employing the no-core shell model to study the fluorine isotope $^{19}$F. We further perform quantum-chemistry calculations to evaluate the sensitivity of the hafnium monofluoride cation, HfF$^+$, to the NSM of $^{19}$F. Combined with recent high-precision measurements of the molecular electric dipole moment of HfF$^+$, our results enable the first experimental bound on the NSM of $^{19}$F. Although the resulting bounds on the pion-nucleon-nucleon ($π$NN) coupling constants are not yet the most stringent, this work establishes the foundation for constraining $π$NN interactions using nuclear ab initio methods. |
| title | Nuclear Schiff moment of fluorine isotope $^{19}$F |
| topic | Nuclear Theory Atomic Physics Computational Physics |
| url | https://arxiv.org/abs/2507.19811 |