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Evidence for superdeformation in Dy-149,Dy-150: Onset of the collapse of the Z=66 deformed shell closure?

Appelbe, DE; Beausang, CW; Barton, CJ; Caprio, MA; Casten, RF; Cederkäll, Joakim LU ; Cooper, JR; Krucken, R; Novak, JR and Zamfir, NV, et al. (2000) In Physical Review C (Nuclear Physics) 61(3).
Abstract
An experiment has been performed to search for superdeformed (SD) states in Dy-149,Dy-150. While no evidence for discrete superdeformed states has been observed, a superdeformed ridge with a separation of Delta E-gamma=52 keV with a total intensity of 1.8+/-0.5% that of Dy-150 has been observed. An upper limit of 0.8% (0.9%), of the intensity of Dy-150 (Dy-149), is placed for observation of the most intense discrete line states. The relative weakness in the SD population is suggested to be due to a rapid decrease in the depth of the superdeformed minimum, as one moves away from doubly magic Dy-152.
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publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
61
issue
3
publisher
American Physical Society
external identifiers
  • wos:000085792500063
ISSN
0556-2813
language
English
LU publication?
no
id
77bff93e-8ea5-40af-9d70-6917412ffc16 (old id 4282047)
date added to LUP
2014-02-03 10:28:33
date last changed
2016-11-18 13:57:11
@article{77bff93e-8ea5-40af-9d70-6917412ffc16,
  abstract     = {An experiment has been performed to search for superdeformed (SD) states in Dy-149,Dy-150. While no evidence for discrete superdeformed states has been observed, a superdeformed ridge with a separation of Delta E-gamma=52 keV with a total intensity of 1.8+/-0.5% that of Dy-150 has been observed. An upper limit of 0.8% (0.9%), of the intensity of Dy-150 (Dy-149), is placed for observation of the most intense discrete line states. The relative weakness in the SD population is suggested to be due to a rapid decrease in the depth of the superdeformed minimum, as one moves away from doubly magic Dy-152.},
  articleno    = {037303},
  author       = {Appelbe, DE and Beausang, CW and Barton, CJ and Caprio, MA and Casten, RF and Cederkäll, Joakim and Cooper, JR and Krucken, R and Novak, JR and Zamfir, NV and Wang, Z},
  issn         = {0556-2813},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Evidence for superdeformation in Dy-149,Dy-150: Onset of the collapse of the Z=66 deformed shell closure?},
  volume       = {61},
  year         = {2000},
}