Phys. Rev. C 64, 024313 (2001) [6 pages]Shape, shell structure, and low-lying strong octupole strength in 2060Ca40Received 20 February 2001; published 11 July 2001 Properties of the possible l-s closed shell nucleus 2060Ca40, which is expected to be spherical in the ground state, are studied, using the self-consistent Hartree-Fock calculation plus the random-phase approximation with Skyrme interactions. The possible disappearance of the magic number N=50 is suggested in nuclei near the neutron drip line. In particular, the low-lying octupole threshold strength, which may be strongly collective due to the disappearance of the N=50 magic number, is pointed out. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.64.024313
DOI:
10.1103/PhysRevC.64.024313
PACS:
21.60.Jz, 21.10.Pc, 23.20.Js, 27.50.+e
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