Published September 1997 | Version v1
Journal article

High spin octupole correlations in the N=85, 139Xe and 141Ba isotones

  • 1. Joint Institute for Heavy Ion Research, Oak Ridge, TN 37831 (United States)
  • 2. Department of Physics, Vanderbilt University, Nashville, TN 37235 (United States)
  • 3. Physics Department, Tsinghua University, Beijing, 100084 (China)
  • 4. Department of Physics, Mississippi State University, MS 39762 (United States)
  • 5. Idaho National Engineering Laboratory, Idaho Falls, ID 83415 (United States)
  • 6. Flerov Laboratory for Nuclear Reaction, Joint Institute for Nuclear Research, Dubna (Russian Federation)
  • 7. Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
  • 8. Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)
  • 9. Department of Nuclear Engineering, University of California, Berkeley, CA (United States)

Description

High spin states in 139Xe and 141Ba have been investigated using γ-γ - and γ-γ-γ-coincidence studies of spontaneous fission of 252Cf. Alternating parity bands built on a 7/2-level are assigned up to spin I=(37/2) and I=(29/2) in 139Xe and 141Ba, respectively. Another possible octupole band based on νi132(f7/2)2 multiplet with spin up to (29/2) also is observed in both nuclei. Cascades of enhanced E1 transitions and B(E1)/B(E2) ratios indicate strong octupole correlations. Systematics of the ν(f7/2)3, ν(f7/2)3x3- and νu13/2(f7/2)2 multiplets and bands in N 85 isotones are presented. (author). Letter-to-the-editor

Additional details

Publishing Information

Journal Title
Journal of Physics. G, Nuclear and Particle Physics (Online)
Journal Volume
23
Journal Issue
9
Journal Page Range
p. L77-L83
ISSN
1361-6471

Optional Information

Notes
18 refs; This record replaces 31045230