Abstract
From a shell model analysis of high-spin states in neutron deficient nuclei above146Gd we have derived the ground state masses of theN=82 and 83 isotones of Eu, Tb, Dy, Ho, and Er. The results can be used to calculate the energies of aligned multiparticle yrast configurations. They also link ten α-decay chains to the nuclei with known masses, providing many new absolute mass values which are compared with predictions. An examination of the two-proton separation energies atN=82 shows an 0.5 MeV break in the nuclear mass surface atZ=64.
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Supported by the U.S. Department of Energy
We thank R. Broda for his participation in the early stages of this study, and W. Borchert for advice in numerical calculations. We are grateful to O. Schult for interesting discussions. One of us (P.K.) acknowledges support from Lawrence Livermore Laboratory during a sabbatical visit.
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Blomqvist, J., Kleinheinz, P. & Daly, P.J. Atomic masses above146Gd derived from a shell model analysis of high spin states. Z Physik A 312, 27–41 (1983). https://doi.org/10.1007/BF01411658
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DOI: https://doi.org/10.1007/BF01411658