Constraining CP violating nucleon-nucleon long range interactions in diatomic eEDM searches
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916400330702848 |
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| author | Baruch, Chaja Changala, P. Bryan Shagam, Yuval Soreq, Yotam |
| author_facet | Baruch, Chaja Changala, P. Bryan Shagam, Yuval Soreq, Yotam |
| contents | The searches for CP violating effects in diatomic molecules, such as $\text{HfF}^+$ and ThO, are typically interpreted as a probe of the electron's electric dipole moment ($e\text{EDM}$), a new electron-nucleon interaction, and a new electron-electron interaction. However, in the case of a nonvanishing nuclear spin, a new CP violating nucleon-nucleon long range force will also affect the measurement. Here, we use the $\text{HfF}^+$ $e\text{EDM}$ search and derive a new bound on this hypothetical interaction, which is the most stringent from terrestrial experiments in the 1 eV-10 keV mass range. These multiple new physics sources motivate independent searches in different molecular species for CP violation at low energy that result in model independent bounds, which are insensitive to cancellation among them. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_07504 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraining CP violating nucleon-nucleon long range interactions in diatomic eEDM searches Baruch, Chaja Changala, P. Bryan Shagam, Yuval Soreq, Yotam High Energy Physics - Phenomenology High Energy Physics - Experiment Atomic Physics The searches for CP violating effects in diatomic molecules, such as $\text{HfF}^+$ and ThO, are typically interpreted as a probe of the electron's electric dipole moment ($e\text{EDM}$), a new electron-nucleon interaction, and a new electron-electron interaction. However, in the case of a nonvanishing nuclear spin, a new CP violating nucleon-nucleon long range force will also affect the measurement. Here, we use the $\text{HfF}^+$ $e\text{EDM}$ search and derive a new bound on this hypothetical interaction, which is the most stringent from terrestrial experiments in the 1 eV-10 keV mass range. These multiple new physics sources motivate independent searches in different molecular species for CP violation at low energy that result in model independent bounds, which are insensitive to cancellation among them. |
| title | Constraining CP violating nucleon-nucleon long range interactions in diatomic eEDM searches |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Atomic Physics |
| url | https://arxiv.org/abs/2402.07504 |