Quenching of isoscalar spin-flip strength in Fe54

Phys. Rev. C 30, 952 – Published 1 September 1984
D. F. Geesaman, R. D. Lawson, B. Zeidman, G. C. Morrison, A. D. Bacher, C. Olmer, G. R. Burleson, W. B. Cottingame, S. J. Greene, R. L. Boudrie, C. L. Morris, R. A. Lindgren, W. H. Kelly, R. E. Segel, and L. W. Swenson


The inelastic scattering of 162 MeV π+ and π- to 8- states in Fe54 was studied. Isoscalar and isovector structure amplitudes were extracted for each state. The summed isoscalar strength corresponds to only 11% of that predicted in an [(f72)-3g92]8- calculation, while 38% of the isovector strength is observed. This is similar to the quenching of strength observed in lighter nuclei and demonstrates that the strong quenching of the isoscalar spin-flip strength persists in the f-p shell.

DOI: http://dx.doi.org/10.1103/PhysRevC.30.952

  • Received 11 April 1984
  • Published in the issue dated September 1984

© 1984 The American Physical Society

Authors & Affiliations

D. F. Geesaman, R. D. Lawson, and B. Zeidman

  • Argonne National Laboratory, Argonne, Illinois 60439

G. C. Morrison

  • University of Birmingham, Birmingham, United Kingdom

A. D. Bacher and C. Olmer

  • Indiana University, Bloomington, Indiana 47405

G. R. Burleson, W. B. Cottingame, and S. J. Greene

  • New Mexico State University, Las Cruces, New Mexico 88003

R. L. Boudrie and C. L. Morris

  • Los Alamos National Laboratory, Los Alamos, New Mexico 87545

R. A. Lindgren

  • University of Massachusetts, Amherst, Massachusetts 01003

W. H. Kelly*

  • Montana State University, Bozeman, Montana 59715

R. E. Segel

  • Northwestern University, Evanston, Illinois 60201

L. W. Swenson

  • Oregon State University, Corvallis, Oregon 97331

  • *Present address: Iowa State University, Ames, IA 50011.

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