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Evidence for superdeformation in 149,150dy : Onset of the collapse of the z=66 deformed shell closure?

Appelbe, D. E.; Beausang, C. W.; Barton, C. J.; Caprio, M. A.; Casten, R. F.; Cederkäll, J.; Cooper, J. R.; Krücken, R.; Novak, J. R. and Zamfir, N. V., et al. (2000) In Physical Review C - Nuclear Physics 61(3). p.373031-373034
Abstract

An experiment has been performed to search for superdeformed (SD) states in 149,150Dy. While no evidence for discrete superdeformed states has been observed, a superdeformed ridge with a separation of ΔΕγ=52 keV with a total intensity of 1.8±0.5% that of 150Dy has been observed. An upper limit of 0.8% (0.9%), of the intensity of 150Dy (149Dy), 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 152Dy.

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type
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publication status
published
in
Physical Review C - Nuclear Physics
volume
61
issue
3
pages
4 pages
publisher
American Physical Society
external identifiers
  • scopus:12944259140
ISSN
0556-2813
DOI
10.1103/PhysRevC.61.037303
language
English
LU publication?
no
id
62d27e7e-1d73-45f1-9a30-12ce2dc0e3d0
date added to LUP
2018-10-26 17:30:37
date last changed
2019-05-28 03:49:32
@article{62d27e7e-1d73-45f1-9a30-12ce2dc0e3d0,
  abstract     = {<p>An experiment has been performed to search for superdeformed (SD) states in <sup>149,150</sup>Dy. While no evidence for discrete superdeformed states has been observed, a superdeformed ridge with a separation of ΔΕ<sub>γ</sub>=52 keV with a total intensity of 1.8±0.5% that of <sup>150</sup>Dy has been observed. An upper limit of 0.8% (0.9%), of the intensity of <sup>150</sup>Dy (<sup>149</sup>Dy), 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 <sup>152</sup>Dy.</p>},
  articleno    = {037303},
  author       = {Appelbe, D. E. and Beausang, C. W. and Barton, C. J. and Caprio, M. A. and Casten, R. F. and Cederkäll, J. and Cooper, J. R. and Krücken, R. and Novak, J. R. and Zamfir, N. V. and Wang, Z.},
  issn         = {0556-2813},
  language     = {eng},
  month        = {01},
  number       = {3},
  pages        = {373031--373034},
  publisher    = {American Physical Society},
  series       = {Physical Review C - Nuclear Physics},
  title        = {Evidence for superdeformation in <sup>149,150</sup>dy : Onset of the collapse of the z=66 deformed shell closure?},
  url          = {http://dx.doi.org/10.1103/PhysRevC.61.037303},
  volume       = {61},
  year         = {2000},
}