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APS » Journals » Phys. Rev. Lett. » Volume 74 » Issue 19
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Phys. Rev. Lett. 74, 3756–3759 (1995)

Multifragmentation in the 4.8-GeV 3He + natAg, 197Au Reactions

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K. Kwiatkowski1, K. B. Morley1, E. Renshaw Foxford1, D. S. Bracken1, V. E. Viola1, N. R. Yoder1, R. Legrain2, E. C. Pollacco2, C. Volant2, W. A. Friedman3, R. G. Korteling4, J. Brzychczyk5, and H. Breuer6
1Department of Chemistry and Physics and IUCF, Indiana University, Bloomington, Indiana 47405
2Commissariat à l'Energie Atomique DAPNIA/Service de Physique des Particles, Centre d'Etudes de Saclay, 91191 Gif-sur-Yvette Cedex, France
3Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1SG
4Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
5Institute of Physics, Jagiellonian University, 30-059 Krakow, Poland
6Department of Physics, University of Maryland, College Park, Maryland 20742

Received 11 October 1994; published in the issue dated 8 May 1995

Multifragmentation of natAg and 197Au nuclei induced by a 4.8-GeV 3He ions has been studied with the Indiana Silicon Sphere 4π detector array. Rapidity and moving source analyses are consistent with thermal emission from a source in approximate kinetic equilibrium. For the most dissipative collisions, the spectral Coulomb peaks are broadened to very low energies, indicative of emission from an extended nuclear system. Predictions of a model with an intranuclear cascade and an expanding, emitting source compare well with experimental multiplicity distributions and the evolution of fragment spectral shapes.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.3756
DOI:
10.1103/PhysRevLett.74.3756
PACS:
25.55.-e, 25.70.Pq
 
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