Rise and fall of multifragment emission

Journal Article · Mon Sep 02 04:00:00 EDT 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.1214· OSTI ID:5218921

Ogilvie, C A; Adloff, J C; Begemann-Blaich, M; Bouissou, P; Hubele, J; Imme, G; Iori, I; Kreutz, P; Kunde, G J; Leray, S; Lindenstruth, V; Liu, Z; Lynen, U; Meijer, R J; Milkau, U; Mueller, W F.J.; Ngo, C; Pochodzalla, J; Raciti, G; Rudolf, G ; Sann, H; Schuettauf, A; Seidel, W; Stuttge, L; Trautmann, W; Tucholski, A ^[1]

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1. Gesellschaft fuer Schwerionenforschung; D-6100 Darmstadt (Federal Republic of Germany) Institut fuer Kernphysik; Universitaet Frankfurt; D-6000 Frankfurt (Federal Republic of Germany) Zentralinstitat fuer Kernforschung; Rossendorf; Dresden (Federal Republic of Germany) Dipartimento di Fisica dell' Universita; I-95129 Catania (Italy) Laboratoire National Saturne; Centre d'Etudes Nucleaires de Saclay; F-91191 Gif-sur-Yvette (France) Centre de Recherches Nucleaires; Strasbourg (France) Istituto di Scienze Fisiche; Universita degli Studi di Milano; I-20133 Milano (Italy)

We have studied multifragment decays of Au projectiles after collisions with C, Al, and Cu targets at a bombarding energy of 600 MeV nucleon. We find that with increasing violence of the collision, measured via the multiplicity of light particles, the mean multiplicity of intermediate-mass fragments originating from the projectile first increases to a maximum {l angle}{ital M}{sub IMF}{r angle}{congruent}3 and then decreases again. Calculations using the Boltzmann-Uehling-Uhlenbeck model suggest that the fragmentation is governed by the energy {ital E}{sub dep} deposited into the projectile spectator and that {l angle}{ital M}{sub IMF}{r angle} reaches its maximum around {ital E}{sub dep}{congruent}8 MeV/nucleon.

• OSTI ID: 5218921
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:10; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM ISOTOPES
ANGULAR DISTRIBUTION
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COPPER ISOTOPES
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
GOLD ISOTOPES
HEAVY ION REACTIONS
INFORMATION
ISOTOPES
MULTIPLICITY
NUCLEAR FRAGMENTATION
NUCLEAR REACTIONS
NUMERICAL DATA
TIME-OF-FLIGHT METHOD