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High Energy Physics - Experiment
Title: Measuring the molecular Migdal effect with neutron scattering on diatomic gases
(Submitted on 13 Mar 2024 (v1), last revised 4 Apr 2024 (this version, v2))
Abstract: 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 an experiment which could detect the Migdal effect in diatomic molecules through low-energy neutron scattering. 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.
Submission history
From: Yonatan Kahn [view email][v1] Wed, 13 Mar 2024 18:00:03 GMT (8239kb,D)
[v2] Thu, 4 Apr 2024 08:26:26 GMT (8239kb,D)
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