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Generator coordinate method calculation of the E2 decay lifetime of shape isomers in the actinide region

par Krieger, S. J.;Bonche, Paul;Flocard, Hubert;Heenen, Paul-Henri ;Mehrem, Rami;Weiss, S. M.
Référence Physical Review C (Nuclear Physics)
Publication Publié, 1996

Article révisé par les pairs

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Résumé :

We apply the generator coordinate method in a fully microscopic calculation of the E2 decay lifetime of the shape isomeric states of 236U, 238U, and 240Pu. The basis states have been generated by constrained Hartree-Fock Bardeen-Cooper-Schrieffer calculations with the SkM* force. Triaxial quadrupole deformations have been included. Implications upon the decay lifetime of the quasidegeneracy of the isomeric state and the one-phonon excitation in the first well are examined.