Study of the reactions occurring in the fusion of {sup 12}C and {sup 16}O with heavy nuclei at incident energies below 10 MeV/nucleon

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.52.2577· OSTI ID:122390

Cavinato, M; Fabrici, E; Gadioli, E; Gadioli Erba, E; Vergani, P; Crippa, M; Colombo, G; Redaelli, I; Ripamonti, M ^[1]

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1. Dipartimento di Fisica, Universita di Milano, Istituto Nazionale di Fisica Nucleare, Sezione di Milano, I-20133 Milano (Italy)

The excitation functions for production of many residues in the fusion of {sup 12}C with {sup 181}Ta and {sup 197}Au and of {sup 16}O with {sup 165}Ho and {sup 181}Ta have been measured at incident energies varying from the Coulomb barrier up to about 10 MeV/nucleon. The cross sections for fusion of these ions without fission have been deduced and they show that such a process may only occur for projectile angular momenta smaller than a critical value. The excitation functions for individual reactions provide evidence for the emission of preequilibrium nucleons during the thermalization of the composite nucleus and may be satisfactorily reproduced by a calculation based on the Boltzmann master equation theory.

• OSTI ID: 122390
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 52; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR MOMENTUM
BOLTZMANN EQUATION
CARBON 12 REACTIONS
COULOMB FIELD
CROSS SECTIONS
EMISSION
EQUILIBRIUM
EXCITATION FUNCTIONS
GOLD 197 TARGET
HEAVY ION FUSION REACTIONS
HOLMIUM 165 TARGET
OXYGEN 16 REACTIONS
TANTALUM 181 TARGET
THERMALIZATION