New constraints on coherent elastic neutrino-nucleus scattering by the nuGeN experiment

Fuente: arXiv
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Autores principales: Belov, V., Bystryakov, A., Danilov, M., Evseev, S., Fomina, M., Ignatov, G., Kazartsev, S., Khushvaktov, J., Khussainov, T., Konovalov, A., Kuznetsov, A., Lubashevskiy, A., Medvedev, D., Ponomarev, D., Sautner, D., Shakhov, K., Shevchik, E., Shirchenko, M., Rozov, S., Rozova, I., Vasilyev, S., Yakushev, E., Zhitnikov, I., Zinatulina, D.
Formato: Preprint
Publicado: 2025
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author Belov, V.
Bystryakov, A.
Danilov, M.
Evseev, S.
Fomina, M.
Ignatov, G.
Kazartsev, S.
Khushvaktov, J.
Khussainov, T.
Konovalov, A.
Kuznetsov, A.
Lubashevskiy, A.
Medvedev, D.
Ponomarev, D.
Sautner, D.
Shakhov, K.
Shevchik, E.
Shirchenko, M.
Rozov, S.
Rozova, I.
Vasilyev, S.
Yakushev, E.
Zhitnikov, I.
Zinatulina, D.
author_facet Belov, V.
Bystryakov, A.
Danilov, M.
Evseev, S.
Fomina, M.
Ignatov, G.
Kazartsev, S.
Khushvaktov, J.
Khussainov, T.
Konovalov, A.
Kuznetsov, A.
Lubashevskiy, A.
Medvedev, D.
Ponomarev, D.
Sautner, D.
Shakhov, K.
Shevchik, E.
Shirchenko, M.
Rozov, S.
Rozova, I.
Vasilyev, S.
Yakushev, E.
Zhitnikov, I.
Zinatulina, D.
contents The nuGeN experiment searches for coherent elastic neutrino-nucleus scattering (CEvNS) at the Kalinin Nuclear Power Plant. A 1.41-kg high-purity low-threshold germanium detector surrounded by active and passive shielding is deployed at the minimal distance of 11.1 m allowed by the lifting mechanism from the center of reactor core, utilizing one of the highest antineutrino fluxes among the competing experiments. The direct comparison of the count rates obtained during reactor-ON and reactor-OFF periods with the energy threshold of 0.29~keV$_{ee}$ shows no statistically significant difference. New upper limits on the number of CEvNS events are evaluated on the basis of the residual ON$-$OFF count rate spectrum.
format Preprint
id arxiv_https___arxiv_org_abs_2502_18502
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle New constraints on coherent elastic neutrino-nucleus scattering by the nuGeN experiment
Belov, V.
Bystryakov, A.
Danilov, M.
Evseev, S.
Fomina, M.
Ignatov, G.
Kazartsev, S.
Khushvaktov, J.
Khussainov, T.
Konovalov, A.
Kuznetsov, A.
Lubashevskiy, A.
Medvedev, D.
Ponomarev, D.
Sautner, D.
Shakhov, K.
Shevchik, E.
Shirchenko, M.
Rozov, S.
Rozova, I.
Vasilyev, S.
Yakushev, E.
Zhitnikov, I.
Zinatulina, D.
High Energy Physics - Experiment
Nuclear Experiment
The nuGeN experiment searches for coherent elastic neutrino-nucleus scattering (CEvNS) at the Kalinin Nuclear Power Plant. A 1.41-kg high-purity low-threshold germanium detector surrounded by active and passive shielding is deployed at the minimal distance of 11.1 m allowed by the lifting mechanism from the center of reactor core, utilizing one of the highest antineutrino fluxes among the competing experiments. The direct comparison of the count rates obtained during reactor-ON and reactor-OFF periods with the energy threshold of 0.29~keV$_{ee}$ shows no statistically significant difference. New upper limits on the number of CEvNS events are evaluated on the basis of the residual ON$-$OFF count rate spectrum.
title New constraints on coherent elastic neutrino-nucleus scattering by the nuGeN experiment
topic High Energy Physics - Experiment
Nuclear Experiment
url https://arxiv.org/abs/2502.18502