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Joakim

Joakim Cederkäll

Professor

Joakim

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

Author

  • DE Appelbe
  • CW Beausang
  • CJ Barton
  • MA Caprio
  • RF Casten
  • Joakim Cederkäll
  • JR Cooper
  • R Krucken
  • JR Novak
  • NV Zamfir
  • Z Wang
Show all

Summary, in English

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.

Publishing year

2000

Language

English

Publication/Series

Physical Review C (Nuclear Physics)

Volume

61

Issue

3

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0556-2813