Search academic texts

Information × Registration Number 0122U002390, R & D request Title Investigation of the properties of elementary particles and search for effects beyond the Standard Model of elementary particles by methods of low-background nuclear spectrometry Head Danevych Fedir A., Доктор фізико-математичних наук Registration Date 27-04-2022 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description1 The aim of the project is experimental study of different channels of double beta decay of 100Mo, 106Cd, 116Cd, 150Nd, 184Os, 192Os, 190Pt, 198Pt nuclei at a new level of sensitivity and evaluation, based on the results of these experiments, of the effective Majorana neutrino mass, neutrino mass hierarcy, testing of the lepton number conservation law, the presence of admixtures of the right-handed currents in the weak interaction, the parameters of the neutrino coupling with the hypothetical majoron, and other parameters of the theory. In the case of studies of the two-neutrino decay mode allowed by the Standard Model, the aim is to measure the half-lives and the shapes of beta spectra as accurately as possible. The purpose of analyzing data from experiments on search for double beta decay and other rare processes will also be to limit (or observe the effect) the parameters of effects beyond the Standard Model, such as electron and nucleon instability, the existence of hypothetical axions, sterile neutrinos and other parameters of models extensing the Standard Model of elementary particles. The aim of developing low-background scintillation, semiconductor, low-temperature bolometric detectors is to increase the sensitivity of experiments with such detectors to the processes of double beta decay, to the interactions of hypothetical dark matter particles with matter, to rare beta and alpha decays. popup.nrat_date 2024-12-09 Close