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M1 strength in zirconium isotopes by proton inelastic scattering

G. M. Crawley, N. Anantaraman, and A. Galonsky

C. Djalali, N. Marty, M. Morlet, A. Willis, J. -C. Jourdain, and P. Kitching*

  • National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824

  • Institut de Physique Nucléaire, F-91406, Orsay, France

  • *On leave from University of Alberta, Edmonton, Alberta, Canada.
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Phys. Rev. C 26, 87 – Published 1 July, 1982

DOI: https://doi.org/10.1103/PhysRevC.26.87

Abstract

A broad resonance has been observed by inelastic scattering of 200 MeV protons from Zr90, Zr92, Zr94, and Zr96. This resonance has a sharply forward peaked angular distribution and an excitation energy and strength which strongly suggest that it is the M1 giant resonance. Microscopic distorted wave impulse approximation calculations match the shape of the angular distribution reasonably well. The strength, however, is only about 30% of that predicted.

NUCLEAR REACTIONS Zr90,92,94,96(p, p′), E=200 MeV, measured σ(θ), DWBA analysis, enriched targets, deduced levels, resolution 70 keV.

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Phys. Rev. C 26, 87– Published 1 July, 1982
  • Received 8 February 1982

© 1982 American Physical Society

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