Seniority structure of Xe82 136

E. E. Peters, P. Van Isacker, A. Chakraborty, B. P. Crider, A. Kumar, S. H. Liu, M. T. McEllistrem, C. V. Mehl, F. M. Prados-Estévez, T. J. Ross, J. L. Wood, S. W. Yates

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The level structure of the N=82 nucleus Xe136 was studied with the inelastic neutron scattering reaction followed by γ-ray detection. A number of the spins and parities were reassigned, and many level lifetimes were determined for the first time using the Doppler-shift attenuation method. New shell-model calculations were also performed using both the full Z=50-82 model space, and a reduced model space including only the 1d5/2 and 0g7/2 orbitals. This new information characterizing Xe136 was used to identify the seniority structure of the low-lying levels and to assign (π0g7/2)υ=04, (π0g7/2)υ=24, (π0g7/2)υ=44, (π1d5/2)(π0g7/2)υ=13, and (π1d5/2)2(π0g7/2)υ=02 configurations to describe all observed states below 2.8 MeV.

Original languageEnglish
Article number034302
JournalPhysical Review C
Volume98
Issue number3
DOIs
StatePublished - Sep 6 2018

Bibliographical note

Funding Information:
This material is based upon work supported by the U.S. National Science Foundation under Grant No. PHY-1606890. We wish to thank Prof. Andreas Görgen for providing the thesis from the University of Oslo and Prof. Norbert Pietralla for making the recent results from the Coulomb excitation study available. We also thank H. E. Baber for his valuable contributions in maintaining the UKAL.

Publisher Copyright:
© 2018 American Physical Society.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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