Neutrino oscillations have been actively studied for the last few decades. At the moment, the unknown parameters of the theory are the neutrino mass ordering and the phase of CP violation in the lepton sector. One of the ways to increase the sensitivity to these parameters is the combination the results of several experiments. For many years phenomenologists have been doing such unification...
The NOvA experiment is a long-baseline neutrino experiment designed to study the oscillation behavior of neutrinos and antineutrinos utilizing Fermilab’s Megawatt-capable NuMI neutrino beam. NOvA has been collecting data for 10 years from two functionally identical tracking calorimeter detectors, which are situated off the NuMI beam axis and separated by 810 km. The experiment’s construction...
The analysis presented in this work aims at the study of heavy neutrinos (N) with masses $< 493\,~\text{MeV/c}^2$ produced in charged kaon and pion decays and subsequently decaying in the T2K off-axis near detector ND280. Two- and three-body decay modes are considered:
$N \rightarrow l_{\alpha}^{\pm} \pi^{\mp}, \ N \rightarrow l_{\alpha}^{+} l_{\beta}^{-} \nu (\bar{\nu}),~\text{where...
The long baseline neutrino oscillation experiment T2K [1] is aiming at searching for CP violation in the neutrino sector and precision measurements of neutrino oscillation parameters. T2K has obtained results indicating CP violation with more than 90% confidence level [2]. In the T2K experiment, the neutrino beam generated at J-PARC is measured at the near detector ND280 located 280m...
In the P2O (Protvino-to-ORCA) experiment, it is planned to direct a neutrino beam from the U-70 proton accelerator (Protvino, Russia) to the Mediterranean Sea to detect neutrinos with the deep-sea ORCA detector created near the French coast. The purpose of these experiments is to determine the neutrino mass hierarchy and search for CP-violation in the lepton sector. Various options of the...
The highly segmented DANSS anti-neutrino scintillation detector is located at the Kalinin NPP and collects up to 5000 antineutrino events per day. The reactor power was measured using the inverse beta-decay (IBD) event rate during 7.5 years with an accuracy of 1.3% in 3 days and with the relative systematic uncertainty of less than 0.8%. The report will present the measured dependence of the...
A review of worldwide experimental study of coherent elastic neutrino-nucleus scattering (CEvNS) is given.
Coherent elastic neutrino nucleus scattering (CEvNS) is a fundamental process within the Standard Model which was observed for the first time in 2017 by the COHERENT experiment on the CsI target at the Spallation Neutron Source (SNS) located in Oak Ridge National Laboratory (USA). This process cross section prevails over the cross sections of all other known neutrino interactions with heavy...
RED-100 is a two-phase emission detector with an active volume containing 130 kg of liquid xenon. The detector was exposed to the antineutrino flux of $1.35·10^{13}$ $cm^{−2}s^{−1}$ at a distance of 19 m from the 3.1 GW reactor core of Unit 4 of the Kalinin Nuclear Power Plant (KNPP) . The comparison of count rates measured during the reactor on and off periods shows no statistically...
The νGeN experimental setup is deployed at Kalinin Nuclear Power Plant at a distance of 11 m from the center of the Unit 3 core. The experiment aims for observation of coherent elastic scattering of reactor antineutrinos off nuclei (CEvNS) and performs a search of antineutrino magnetic moment (NMM) using a 1.4 kg HPGe detector. Based on the dataset acquired from September 2022 to May 2023 we...
on behalf of Daya Bay Collaboration
The Daya Bay experiment was planned to precisely measure the neutrino oscillation parameters $\sin^2 2\theta_{13}$ and $\Delta m^2_{32}$. The antineutrino flux from six nuclear reactors was measured by eight identically designed liquid scintillator detectors at distances from 400 m to 2 km. Four detectors were located in the two near halls and four...
The DANSS experiment at Kalininskaya NPP is running for already 8 years
since April 2016. More than 8 million inverse beta decay events are already collected. DANSS experimental program includes both search for physics beyond the Standard Model, like sterile neutrinos or large extra dimensions, and applied studies connected to reactor monitoring using electron antineutrino flux. The model...
The iDream (industrial Detector of REactor Antineutrino for Monitoring) project is aimed at development of the reactor antineutrino detection technology for an industrial tool creation. The tool can serve for an additional independent control method of a nuclear reactor operation. The 1 ton Gd doped liquid scintillator neutrino detector is placed under the 3rd energy unit of the Kalinin NPP....
AMoRE (Advanced Mo based Rare process Experiment) is an experiment to search for neutrinoless double-beta decay of 100Mo using scintillating molybdate crystals with metallic magnetic calorimeters as low temperature sensors. The AMoRE-I, which is the first stage of the experiment was completed in April 2023 with the best result of a limit of T0ν1/2 > 3,0x10+24 years at 90% C.L. AMoRE-II main...
Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shells and two neutrinos are carried away.
The measurements of the energies of the emitted particles and the half-life of the 2EC2$\nu$ decay to the ground state are of great interest to nuclear physics. The model predictions for 2EC2$\nu$ half-life are based on the...
The excitation of electron shell of a daughter atom in a neutrinoless double β decay causes change in shape of the total energy peak of β particles at the end of the energy spectrum. This fact has important implications for modelling the energy spectrum of β particles, which is sensitive to the mass and Majorana nature of the neutrino. We report the overlap amplitudes between the parent atom...
We start with an introduction to the theory of neutrino electromagnetic properties [1]. Then we consider the most recent experimental constraints on neutrino magnetic µ and electric d moments, millicharge q, charge radii rν2 and anapole aν moments from the terrestrial experiments (the bounds from MUNU, TEXONO, GEMMA, Super-Kamiokande, Borexino, COHERENT, XENON1T, CONUS and the most recent...
The Sarov tritium neutrino experiment (SATURNE) is part of the scientific program of the National Center for Physics and Mathematics (NCPM) [1] that was founded in Sarov in 2021. The experiment is under preparation, with the first taking of data expected for 2025.
Being motivated by fundamental problems in neutrino physics, SATURNE will primarily search for neutrino electromagnetic...
