Abstract
The process of neutrino interaction with \({}^{128}\) Te and \({}^{130}\) Te nuclei is studied with allowance for the effect of charge-exchange resonances. The cross sections \(\sigma\) ( \(E_{\nu}\) ) for solar-neutrino capture by the isotopes \({}^{128}\) Te and \({}^{130}\) Te are calculated. Both experimental data obtained for the strength functions \(S(E)\) in ( \({}^{3}\) He, \(t\) ) charge-exchange reactions and the functions \(S(E)\) calculated within the microscopic theory of finite Fermi systems are used. The effect of the resonance structure of \(S(E)\) on the calculated cross sections for solar-neutrino capture is studied, and the contribution of each high-lying resonance to the capture cross section \(\sigma\) ( \(E_{\nu}\) ) is analyzed. The contributions of all components of the solar-neutrino spectrum are calculated. The contribution of background solar neutrinos to the double-beta decay of \({}^{130}\) Te nuclei is estimated.
