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Alekseev I, Balej K, Belov V, Evseev S, Filosofov D, Fomina M, Hons Z, Karaivanov D, Kazartsev S, Khushvaktov J, Kuznetsov A, Lubashevskiy A, Medvedev D, Ponomarev D, Rakhimov A, Shakhov K, Shevchik E, Shirchenko M, Smolek K, Rozov S, Rozova I, Vasilyev S, Yakushev E, Zhitnikov I. First results of the
νGeN
experiment on coherent elastic neutrino-nucleus scattering. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.l051101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bonet H, Bonhomme A, Buck C, Fülber K, Hakenmüller J, Heusser G, Hugle T, Lindner M, Maneschg W, Rink T, Strecker H, Wink R. Constraints on Elastic Neutrino Nucleus Scattering in the Fully Coherent Regime from the CONUS Experiment. PHYSICAL REVIEW LETTERS 2021; 126:041804. [PMID: 33576662 DOI: 10.1103/physrevlett.126.041804] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/23/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
We report the best limit on coherent elastic scattering of electron antineutrinos emitted from a nuclear reactor off germanium nuclei. The measurement was performed with the CONUS detectors positioned at 17.1 m from the 3.9 GW_{th} reactor core of the nuclear power plant in Brokdorf, Germany. The antineutrino energies of less than 10 MeV assure interactions in the fully coherent regime. The analyzed dataset includes 248.7 kg d with the reactor turned on and background data of 58.8 kg d with the reactor off. With a quenching parameter of k=0.18 for germanium, we determined an upper limit on the number of neutrino events of 85 in the region of interest at 90% confidence level. This new CONUS dataset disfavors quenching parameters above k=0.27, under the assumption of standard-model-like coherent scattering of the reactor antineutrinos.
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Affiliation(s)
- H Bonet
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - A Bonhomme
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - C Buck
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - K Fülber
- Preussen Elektra GmbH, Kernkraftwerk Brokdorf GmbH & Co. oHG, Osterende, 25576 Brokdorf, Germany
| | - J Hakenmüller
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - G Heusser
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - T Hugle
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - M Lindner
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - W Maneschg
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - T Rink
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - H Strecker
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - R Wink
- Preussen Elektra GmbH, Kernkraftwerk Brokdorf GmbH & Co. oHG, Osterende, 25576 Brokdorf, Germany
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Cadeddu M, Dordei F, Giunti C, Li Y, Zhang Y. Neutrino, electroweak, and nuclear physics from COHERENT elastic neutrino-nucleus scattering with refined quenching factor. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.101.033004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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