Breakup of the projectile in [sup 16]O-induced reactions on [sup 27]Al, [sup 58]Ni, and [sup 197]Au targets around 100 MeV/nucleon
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Corso Italia 57, 95129 Catania (Italy)
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Corso Italia 57, 95129 Catania (Italy) Dipartimento di Fisica dell'Universita di Catania, Corso Italia 57, 95129 Catania (Italy)
The spatial correlation among the four He ions coming from the disassembly of the [sup 16]O projectile on [sup 27]Al, [sup 58]Ni, and [sup 197]Au targets has been studied at 94 MeV/nucleon. Charged particles have been detected by a multielement array of plastic scintillators covering the angular domain between 3[degree] and 150[degree]. Standard relativistic kinematics has been used to reconstruct the excitation energy of the primary projectilelike nucleus ([ital E][sub PLN][sup *]). Mean values of this quantity are found independent of the target mass and the comparison with existing similar data taken at lower bombarding energies shows a saturation of [ital E][sub PLN][sup *] around 3 MeV/nucleon. An event-by-event analysis has been performed in order to study the distributions of some global variables such as coplanarity, sphericity, and relative angle, helpful in the understanding of the topological characteristics of the process and in the evaluation of its time scale. Experimental data have also been compared with the results of Monte Carlo simulations based on different reaction mechanisms and it is possible to conclude that sequential emission of the fragments is preferred.
- OSTI ID:
- 6024540
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Vol. 48:2; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM 27 TARGET
OXYGEN 16 REACTIONS
GOLD 197 TARGET
NICKEL 58 TARGET
BREAKUP REACTIONS
CHARGED PARTICLES
FRAGMENTATION
MONTE CARLO METHOD
SIMULATION
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
HEAVY ION REACTIONS
NUCLEAR REACTIONS
TARGETS
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