The 2v beta beta decay in Zr-96(40)56 and the Gamow-Teller strength in Nb-96(41)55 by using a quasi-particle RPA calculation

초록

We calculated the 2 nu beta beta decay for (96)(40)Z(r56) -> M-96(42)O54 and the Gamow-Teller strength for Zr-96(40)56 -> Nb-96(41)55 and M-96(42)o54 -> Nb-96(41)55 by using the quasi-particle random phase approximation (QRPA). Our QRPA includes all kinds of the nucleon pairing correlations (neutron-neutron, proton-proton, and neutron-proton), which are considered within the extended Bardeen-Cooper-Schrieffer (BCS) theory. The Brueckner reaction matrix is obtained from the Bonn potential through the BetheGoldstone equation. The results show reasonable behaviors with respect to the excitation energies.

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