Excited states in 155Yb and 155,156,157Lu from recoil-decay tagging

K. Y. Ding, J. A. Cizewski, D. Seweryniak, H. Amro, M. P. Carpenter, C. N. Davids, N. Fotiades, R. V. F. Janssens, T. Lauritsen, C. J. Lister, D. Nisius, P. Reiter, J. Uusitalo, I. Wiedenhöver, and A. O. Macchiavelli
Phys. Rev. C 64, 034315 – Published 22 August 2001
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Abstract

The 270-MeV 58Ni+102Pd reaction was used for the first recoil-decay tagging measurement with Gammasphere coupled to the Fragment Mass Analyzer at Argonne National Laboratory. Level structures of 155Yb, 156Lu, and 157Lu, as well as the excited states associated with the 25/2 isomer in 155Lu, are identified for the first time. The systematical behavior of the energy levels is compared with that of neighboring isotones and isotopes. The attractive interaction between h11/2 protons and h9/2 neutrons plays an important role in the structure of 155Yb and 155,156Lu.

  • Received 2 April 2001

DOI:https://doi.org/10.1103/PhysRevC.64.034315

©2001 American Physical Society

Authors & Affiliations

K. Y. Ding1,*, J. A. Cizewski1, D. Seweryniak2, H. Amro2,†, M. P. Carpenter2, C. N. Davids2, N. Fotiades1,‡, R. V. F. Janssens2, T. Lauritsen2, C. J. Lister2, D. Nisius2,§, P. Reiter2,∥, J. Uusitalo2,¶, I. Wiedenhöver2, and A. O. Macchiavelli3

  • 1Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903
  • 2Argonne National Laboratory, Argonne, Illinois 60439
  • 3Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

  • *Present address: Telcordia Technologies, Piscataway, NJ 08854.
  • Present address: Mississippi State University, Mississippi St., MS 39762.
  • Present address: Los Alamos National Laboratory, Los Alamos, NM 87545.
  • §Present address: Bio-Imaging Research, Lincolnshire, IL 60069.
  • Present address: Ludwig Maximilian Universität München, Garching, Germany.
  • Present address: University of Jyväskylä, 40351 Jyväskylä, Finland.

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Vol. 64, Iss. 3 — September 2001

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