First results of the nuGeN experiment on coherent elastic neutrino-nucleus scattering

Abstract

The nuGeN experiment is aimed to investigate neutrino properties using antineutrinos from the reactor of the Kalinin Nuclear Power Plant. The experimental setup is located at about 11 meters from the center of the 3.1 GWth reactor core. Scattering of the antineutrinos from the reactor is detected with low energy threshold high purity germanium detector. Passive and active shieldings are used to suppress all kinds of backgrounds coming from surrounding materials and cosmic radiation. The description of the experimental setup together with the first results is presented. The data taken in regimes with reactor ON (94.50 days) and reactor OFF (47.09 days) have been compared. No significant difference between spectra of two data sets is observed, i.e. no positive signals for coherent elastic neutrino-nucleus scattering are detected. Under Standard Model assumptions about coherent neutrino scattering an upper limit on a quenching parameter k < 0.26 (90 \% C.L.) in germanium has been set.

References in corpus (8)

• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon
• Constraints on elastic neutrino nucleus scattering in the fully coherent regime from the CONUS experiment
• Germanium response to sub-keV nuclear recoils: a multipronged experimental characterization
• Direct measurement of the ionization quenching factor of nuclear recoils in germanium in the keV energy range
• Measurement of the low-energy quenching factor in germanium using an ${}^{88}$Y/Be photoneutron source
• First results from a search for coherent elastic neutrino-nucleus scattering (CE$\nu$NS) at a reactor site
• Large-size sub-keV sensitive germanium detectors for the CONUS experiment

Cited by in corpus (16)

• Direct observation of coherent elastic antineutrino-nucleus scattering
• New Limits on Coherent Neutrino Nucleus Elastic Scattering Cross Section at the Kuo-Sheng Reactor Neutrino Laboratory
• Physics implications of recent Dresden-II reactor data
• Final CONUS results on coherent elastic neutrino-nucleus scattering at the Brokdorf reactor
• Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering
• Reactor antineutrinos CE$\nu$NS on germanium: CONUS+ and TEXONO as a new gateway to SM and BSM physics
• Reactor neutrino liquid xenon coherent elastic scattering experiment
• COHERENT production of a dark fermion
• On the impact of the Migdal effect in reactor CE$\nu$NS experiments
• New constraints on coherent elastic neutrino-nucleus scattering by the nuGeN experiment
• A neutrino window to scalar leptoquarks: from low energy to colliders
• Constraints on New Physics with Light Mediators and Generalized Neutrino Interactions via Coherent Elastic Neutrino Nucleus Scattering
• Incoherent solar-neutrino scattering off the stable Tl-isotopes
• Searches for CEνNS and Physics beyond the Standard Model using Skipper-CCDs at CONNIE
• Neutron capture-induced nuclear recoils as background for CE$\nu$NS~measurements at reactors
• Testing lepton non-unitarity with the next generation of Germanium-based CE$\nu$NS reactor experiments