Measuring the molecular Migdal effect with neutron scattering on diatomic gases
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916521178038272 |
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| author | Kahn, Yonatan Pérez-Ríos, Jesús |
| author_facet | Kahn, Yonatan Pérez-Ríos, Jesús |
| contents | The Migdal effect is a key inelastic signal channel which could be used to detect low-mass dark matter, but it has never been observed experimentally using Standard Model probes. Here we propose a conceptual design for an experiment which could detect the Migdal effect in diatomic molecules through low-energy neutron scattering, and we provide the requirements on the beam spectrum and reducible backgrounds such that a detection may be achieved. The enhancement of the Migdal rate through non-adiabatic couplings, which are absent in isolated atoms, combined with the distinctive photon energies of electronic transitions in CO, suggest that a positive detection of the molecular Migdal effect may be possible with modest beam times at existing neutron facilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_08866 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Measuring the molecular Migdal effect with neutron scattering on diatomic gases Kahn, Yonatan Pérez-Ríos, Jesús High Energy Physics - Experiment Quantum Gases High Energy Physics - Phenomenology Atomic Physics Chemical Physics The Migdal effect is a key inelastic signal channel which could be used to detect low-mass dark matter, but it has never been observed experimentally using Standard Model probes. Here we propose a conceptual design for an experiment which could detect the Migdal effect in diatomic molecules through low-energy neutron scattering, and we provide the requirements on the beam spectrum and reducible backgrounds such that a detection may be achieved. The enhancement of the Migdal rate through non-adiabatic couplings, which are absent in isolated atoms, combined with the distinctive photon energies of electronic transitions in CO, suggest that a positive detection of the molecular Migdal effect may be possible with modest beam times at existing neutron facilities. |
| title | Measuring the molecular Migdal effect with neutron scattering on diatomic gases |
| topic | High Energy Physics - Experiment Quantum Gases High Energy Physics - Phenomenology Atomic Physics Chemical Physics |
| url | https://arxiv.org/abs/2403.08866 |