4π studies of the 1.8–4.8 GeV He3+natAg, Au197 reactions. II. Multifragmentation

E. Renshaw Foxford, K. Kwiatkowski, D. S. Bracken, K. B. Morley, V. E. Viola, N. R. Yoder, C. Volant, E. C. Pollacco, R. Legrain, R. G. Korteling, W. A. Friedman, J. Brzychczyk, and H. Breuer
Phys. Rev. C 54, 749 – Published 1 August 1996
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Abstract

Multifragmentation of Agnat and Au197 nuclei induced by 1.8–4.8 GeV He3 ions has been studied with the Indiana Silicon Sphere 4π detector array. Rapidity, moving source, and sphericity-coplanarity analyses are consistent with near-simultaneous emission from a source in approximate kinetic equilibrium. For the most dissipative collisions, the spectral peaks are broadened and shifted to very low energies, indicative of emission from an extended nuclear system with ρ/ρ0∼1/3. Predictions of an intranuclear cascade/expanding, emitting source model compare well with experimental multiplicity distributions and the evolution of fragment spectral shapes. © 1996 The American Physical Society.

  • Received 11 December 1995

DOI:https://doi.org/10.1103/PhysRevC.54.749

©1996 American Physical Society

Authors & Affiliations

E. Renshaw Foxford, K. Kwiatkowski, D. S. Bracken, K. B. Morley, V. E. Viola, and N. R. Yoder

  • Departments of Chemistry and Physics and Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana 47405

C. Volant, E. C. Pollacco, and R. Legrain

  • Commissariat à l'Energie Atomique, DAPNIA Service de Physique Nucléaire, C. E. Saclay, 91191 Gif-sur-Yvette, Cedex, France

R. G. Korteling

  • Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada

W. A. Friedman

  • Department of Physics, University of Wisconsin, Madison, Wisconsin 53706

J. Brzychczyk

  • Institute of Physics, Jagiellonian University, 30-059 Krakow, Poland

H. Breuer

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

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Vol. 54, Iss. 2 — August 1996

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