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Phys. Rev. C 38, 195–209 (1988)

N/Z equilibration in damped collisions induced by E/A=8.5 MeV 58Ni and 64Ni on 238U

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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

Received 16 March 1988; published in the issue dated July 1988

Nuclide distributions have been measured for damped collision products formed in the reaction of E/A=8.5 MeV 58Ni and 64Ni ions with 238U. 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.

© 1988 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.38.195
DOI:
10.1103/PhysRevC.38.195
PACS:
25.70.Lm
 
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