Phys. Rev. C 71, 064320 (2005) [9 pages]Level densities of transitional Sm nucleiReceived 11 March 2005; published 28 June 2005 Experimentally determined level densities of the transitional isotopes 148,149,150,152Sm at excitation energies below and around the neutron binding energy are compared with microcanonical calculations based on a Monte Carlo approach to noncollective level densities, folded with a collective enhancement estimated in the frame of the interacting boson model (IBM). The IBM parameters are adjusted so as to reproduce the low-lying discrete levels of both parities, with the exception of the odd-mass nucleus, 149Sm, where complete decoupling of the unpaired neutron from the core is assumed. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.71.064320
DOI:
10.1103/PhysRevC.71.064320
PACS:
21.10.Ma, 21.10.Pc, 21.10.Re, 27.70.+q
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