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arXiv · 2302.05285

Elastic neutrino-atom scattering as a probe of neutrino millicharge and magnetic moment

Georgy Donchenko·Konstantin Kouzakov·Alexander Studenikin
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Abstract

Neutrino scattering on atomic systems at low-energy transfer is a powerful tool for searching the neutrino electromagnetic interactions. The regime of coherent elastic neutrino-atom scattering, i.e., when the atom recoils as a pointlike particle, can be effectively fulfilled in the case of tritium antineutrinos. We present theoretical calculations for coherent elastic neutrino-atom scattering processes on such targets as the H, $^2$H, $^3$He, and $^4$He %, and $^{12}$C atoms. We show how the atomic effects and neutrino electromagnetic properties, namely the neutrino millicharge and magnetic moment, may manifest themselves in the atomic-recoil spectra. Our results can be used in planning the experiments on coherent elastic neutrino-atom scattering (in particular, with superfluid He-4).

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Georgy Donchenko, Konstantin Kouzakov, Alexander Studenikin. 2023-02-10. Elastic neutrino-atom scattering as a probe of neutrino millicharge and magnetic moment. https://doi.org/10.1134/s0021364023600982

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