N/Z equilibration in damped collisions induced by E/A=8.5 MeV Ni58 and Ni64 on U238

R. Planeta, S. H. Zhou, K. Kwiatkowski, W. G. Wilson, V. E. Viola, H. Breuer, D. Benton, F. Khazaie, R. J. McDonald, A. C. Mignerey, A. Weston-Dawkes, R. T. de Souza, J. R. Huizenga, and W. U. Schröder
Phys. Rev. C 38, 195 – Published 1 July 1988
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Abstract

Nuclide distributions have been measured for damped collision products formed in the reaction of E/A=8.5 MeV Ni58 and Ni64 ions with U238. The data demonstrate that in these very asymmetric systems the evolution of the nucleon-exchange process as a function of energy loss depends strongly on the N/Z value of the projectile and the corresponding gradient in the potential-energy surface. Comparison of the data with transport model calculations shows qualitative agreement with the N and Z centroids, variances, and correlation coefficients. However, absolute discrepancies exist which suggest the need for improvement in the model.

  • Received 16 March 1988

DOI:https://doi.org/10.1103/PhysRevC.38.195

©1988 American Physical Society

Authors & Affiliations

R. Planeta, S. H. Zhou, K. Kwiatkowski, W. G. Wilson, and V. E. Viola

  • Department of Chemistry and Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana 47405

H. Breuer, D. Benton, and F. Khazaie

  • Department of Physics, University of Maryland, College Park, Maryland 20742

R. J. McDonald

  • Nuclear Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720

A. C. Mignerey and A. Weston-Dawkes

  • Department of Chemistry, University of Maryland, College Park, Maryland 20742

R. T. de Souza, J. R. Huizenga, and W. U. Schröder

  • Department of Chemistry and Nuclear Science Research Laboratory, University of Rochester, Rochester, New York 14627

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Vol. 38, Iss. 1 — July 1988

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