Calculation of two neutrino double beta decay nuclear matrix elements for 128,130Te

Abstract

Based on Pyatov-Salamov method, spin-isospin (Gamow-Teller) effective interaction strength parameter has been found self-consistently. Then, the problem has been solved within the framework of QRPA. Gamow-Teller matrix elements for both ß- and ß+ transitions and two neutrino double beta decay nuclear matrix elements have been calculated for 128,130Te›128,130Xe transitions. The obtained results have been compared with the corresponding experimental data and other theoretical results