Phys. Rev. C 55, R585–R587 (1997)Transition from the seniority to the anharmonic vibrator regime in nuclei
A recent analysis of experimental energy systematics suggests that all collective nuclei fall into one of three classes — seniority, anharmonic vibrational, or rotational — with sharp phase transitions between them. We investigate the transition from the seniority to the anharmonic vibrator regime within a shell model framework involving a single large j orbit. The calculations qualitatively reproduce the observed transitional behavior, both for U(5)-like and O(6)-like nuclei. They also confirm the preeminent role played by the neutron-proton interaction in producing the phase transition. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.55.R585
DOI:
10.1103/PhysRevC.55.R585
PACS:
21.10.-k, 21.30.Fe, 21.60.-n
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