Low-lying levels, γ-ray transitions, and vibrational structure in 198Pt from (n, n'γ) reaction spectroscopy

S. W. Yates, A. Khan, A. J. Filo, M. C. Mirzaa, J. L. Weil, M. T. McEllistrem

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Low-lying states in 198Pt have been studied by (n, n'γ) reaction spectroscopy at incident neutron energies below 2.5 MeV. Using detailed γ-ray excitation functions and angular distribution measurements, we have established a level scheme which includes 16 excited levels and is believed to include all levels below an excitation energy of 1.5 MeV. The positive-parity structure is similar to that expected for an anharmonic vibrator; however, difficulties in asserting that the first 0+ excited level is a collective excitation are encountered. Only two negative-parity states are observed, and they are adequately described in the semi-decoupled model.

Original languageEnglish
Pages (from-to)519-532
Number of pages14
JournalNuclear Physics, Section A
Volume406
Issue number3
DOIs
StatePublished - Sep 26 1983

Bibliographical note

Funding Information:
We are grateful to R. Bijker, H. H. Bolotin, R. F. Casten, J. A. Cizewski, P. T. Deason, F. Iachello, I. Y. Lee, R. M. Ronningen, T. Tamura, K. J. Weeks and J. L. Wood for valuable discussions and communications. We acknowledge B. Perraut for his continuing contributions to our experiments and E. D. Kleppinger for his help with the data analysis. This work was partially supported by the US Department of Energy under Contract DE-AS05-79ER10365 and the National Science Foundation under Grant No. PHY-8105572.

Keywords

  • Nuclear reactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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