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arXiv · 1905.10611

Coherent elastic nuclear scattering of $^{51}$Cr neutrinos

C. Bellenghi·D. Chiesa·L. Di Noto·M. Pallavicini·E. Previtali·M. Vignati
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Abstract

Searches for new physics in the coherent elastic neutrino-nucleus scattering require a precise knowledge of the neutrino flux and energy spectrum. In this paper we investigate the feasibility and the performances of an experiment based on a $^{51}$Cr source, whose neutrino spectrum is known and whose activity can be heat-monitored at few permil level. With a 5 MCi source placed at ~ 25 cm from the detector, under an exposure of two $^{51}$Cr half-lives (55.4 days), we evaluate 3900 (900) counts on a 2000 cm$^3$ target of germanium (sapphire) featuring an energy threshold of 8 (20) eV. To further increase the exposure, multiple activations of the same source could be possible.

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C. Bellenghi, D. Chiesa, L. Di Noto, M. Pallavicini, E. Previtali, M. Vignati. 2019-05-25. Coherent elastic nuclear scattering of $^{51}$Cr neutrinos. https://doi.org/10.1140/epjc%2Fs10052-019-7240-3

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