Constraints on new vector boson mediated electron-nucleus interactions from spectroscopy of polar diatomic molecules
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912299912003584 |
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| author | Gaul, Konstantin Cong, Lei Budker, Dmitry |
| author_facet | Gaul, Konstantin Cong, Lei Budker, Dmitry |
| contents | A measurement of parity violation in the hyperfine structure of $^{138}$Ba$^{19}$F [E. Altuntaş et al. Phys. Rev. Lett. 120, 142501 (2018)] is reinterpreted with electronic structure calculations in terms of beyond Standard Model vector boson mediated electron-nucleus interactions. Our results set constraints on previously unexplored, new boson mediated axial vector-vector nucleus-electron interactions. Similar bounds are obtained by analyzing the atomic parity violation experiment with $^{133}$Cs. Moreover, we show that future experiments with cold heavy diatomic molecules like $^{225}$RaF can improve the present sensitivity to axial vector-vector nucleus-electron and nucleon-nucleus interactions by up to five orders of magnitudes. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2503_08210 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraints on new vector boson mediated electron-nucleus interactions from spectroscopy of polar diatomic molecules Gaul, Konstantin Cong, Lei Budker, Dmitry High Energy Physics - Phenomenology Atomic Physics Chemical Physics A measurement of parity violation in the hyperfine structure of $^{138}$Ba$^{19}$F [E. Altuntaş et al. Phys. Rev. Lett. 120, 142501 (2018)] is reinterpreted with electronic structure calculations in terms of beyond Standard Model vector boson mediated electron-nucleus interactions. Our results set constraints on previously unexplored, new boson mediated axial vector-vector nucleus-electron interactions. Similar bounds are obtained by analyzing the atomic parity violation experiment with $^{133}$Cs. Moreover, we show that future experiments with cold heavy diatomic molecules like $^{225}$RaF can improve the present sensitivity to axial vector-vector nucleus-electron and nucleon-nucleus interactions by up to five orders of magnitudes. |
| title | Constraints on new vector boson mediated electron-nucleus interactions from spectroscopy of polar diatomic molecules |
| topic | High Energy Physics - Phenomenology Atomic Physics Chemical Physics |
| url | https://arxiv.org/abs/2503.08210 |