Onset of nuclear vaporization in [sup 197]Au+[sup 197]Au collisions

Journal Article · Mon Sep 06 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.1502· OSTI ID:6114542

Tsang, M B; Hsi, W C; Lynch, W G; Bowman, D R; Gelbke, C K; Lisa, M A; Peaslee, G F ^[1]; Kunde, G J; Begemann-Blaich, M L; Hofmann, T; Hubele, J; Kempter, J; Kreutz, P; Kunze, W D; Lindenstruth, V; Lynen, U; Mang, M; Mueller, W F.J.; Neumann, M; Ocker, B ; Ogilvie, C A; Pochodzalla, J; Rosenberger, F; Sann, H; Schuettauf, A; Serfling, V; Stroth, J; Trautmann, W; Tucholski, A; Woerner, A; Zude, E; Zwieglinski, B ^[2]; Aiello, S; Imme, G; Pappalardo, V; Raciti, G ^[3]; Charity, R J; Sobotka, L G ^[4]; Iori, I; Moroni, A; Scardoni, R; Ferr,

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1. Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Gesellschaft fuer Schwerionenforschung, D-6100 Darmstadt (Germany)
3. Dipartimento di Fisica Universita and Istituto Nazionale di Fisicia Nucleare, Catania, 195127 Catania (Italy)
4. Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)

Multifragmentation has been measured for [sup 197]Au+[sup 197]Au collisions at [ital E]/[ital A]=100, 250, and 400 MeV. The mean fragment multiplicity increases monotonically with the charged particle multiplicity at [ital E]/[ital A]=100 MeV, but decreases for central collisions with incident energy, consistent with the onset of nuclear vaporization. Molecular dynamics calculations follow some trends but underpredict the observed fragment multiplicities. Including the statistical decay of excited residues improves the agreement for peripheral collisions but worsens it for central collisions.

• DOE Contract Number: FG02-87ER40316
• OSTI ID: 6114542
• Journal Information: Physical Review Letters; (United States), Vol. 71:10; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GOLD 197 REACTIONS
NUCLEAR FRAGMENTATION
GOLD 197 TARGET
MULTIPLICITY
CHARGED PARTICLES
HEAVY ION REACTIONS
MEV RANGE 100-1000
PERIPHERAL COLLISIONS
PHASE TRANSFORMATIONS
BASIC INTERACTIONS
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
INTERACTIONS
MEV RANGE
NUCLEAR REACTIONS
STRONG INTERACTIONS
TARGETS
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)