Multifragment events from heavy-ion collisions: Sources and excitation functions

Journal Article · Mon Feb 04 04:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.576· OSTI ID:5620639

Blumenfeld, Y; Colonna, N; Roussel-Chomaz, P; Delis, D N; Hanold, K; Meng, J C; Peaslee, G F; Sui, Q C; Wozniak, G J; Moretto, L G ^[1]; Libby, B; Mignerey, A C ^[2]; Guarino, G ^[3]; Santoruvo, N; Iori, I ^[4]

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1. Lawrence Berkeley Laboratory, Berkeley, CA (USA). Nuclear Science Division
2. University of Maryland, College Park, MD (USA). Department of Chemistry
3. Instituto Nazionale di Fisica Nucleare (INFN), Sezione di Bari, Bari 70126 (Italy)
4. Universita di Milano, Milano (Italy)

Multifragment events from 35, 40, 45, and 55 MeV/nucleon {sup 139}La+{sup 12}C, {sup 27}Al, {sup 40}Ca, {sup 51}V, {sup nat}Cu, and {sup 139}La reactions can be assigned to sources characterized by their velocity. At each bombarding energy, the probabilities of threefold, fourfold and fivefold events increase substantially with decreasing source velocity, but are independent of the target mass. To remove the bombarding-energy dependence, a simple transformation has been applied which gives the excitation energy of the fused system in the simple incomplete-fusion picture. These excitation functions'' appear to independent of both the system and bombarding energy.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5620639
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:5; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
CALCIUM 40 TARGET
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
ENERGY RANGE
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FUNCTIONS
GEV RANGE
GEV RANGE 01-10
HEAVY ION REACTIONS
INELASTIC SCATTERING
INFORMATION
LANTHANUM 139 REACTIONS
NUCLEAR FRAGMENTATION
NUCLEAR REACTIONS
NUMERICAL DATA
SCATTERING
TARGETS
VANADIUM 51 TARGET
VELOCITY