STUDY OF THE SOLAR NEUTRINO INTERACTION WITH Te NUCLEI AND THE LARGE BAKSAN NEUTRINO TELESCOPE PROJECT

The interaction of neutrinos with tellurium nuclei 128 and 130 has been studied, taking into account the influence of charge-exchange resonances. The paper presents calculations of the cross section of solar neutrino capture σ() by the isotopes Te and Te. Both experimental data on the strength functions (), obtained in the charge-exchange reaction (He, ) and the () functions calculated within the framework of the microscopic theory of finite Fermi-systems were used. The influence of the resonant structure () on the calculated capture cross sections of solar neutrinos was studied and the contributions of each of the high-lying resonances to the capture cross section σ() were identified. The contributions of all components of the solar neutrino spectrum were calculated. The contribution of background solar neutrinos to the double beta decay of Te nuclei was estimated.