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arxiv: 1502.05889 · v1 · pith:S75LUPK4new · submitted 2015-02-20 · ⚛️ nucl-th

Gamow-Teller properties of the double beta-decay partners 116Cd(Sn) and 150Nd(Sm)

classification ⚛️ nucl-th
keywords branchescompareddecaydouble-betaexperimentalgamow-tellerpartnersapproach
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The two Gamow-Teller (GT) branches connecting the double-beta decay partners (116Cd, 116Sn) and (150Nd, 150Sm) with the intermediate nuclei 116In and 150Pm are studied within a microscopic approach based on a deformed proton-neutron quasiparticle random-phase approximation built on a Skyrme selfconsistent mean field with pairing correlations and spin-isospin residual forces. The results are compared with the experimental GT strength distributions extracted from charge-exchange reactions. Combining the two branches, the nuclear matrix elements for the two-neutrino double-beta decay are evaluated and compared to experimental values derived from the measured half-lives.

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