Reaction mechanism in the {sup 16}O+{sup 27}Al system: Measurements and analysis of excitation functions and angular distributions

Journal Article · Fri Jun 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.064608· OSTI ID:21003476

Sharma, Manoj Kumar; Unnati,; Singh, Devendra P; Singh, Pushpendra P; Singh, B P; Prasad, R ^[1]; Bhardwaj, H D ^[2]

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1. Department of Physics, Aligarh Muslim University, Aligarh-202002 (India)
2. Department of Physics, DSN, College, Unnao (India)

To study the dynamics of heavy ion fusion reactions in the lower mass region, experiments were carried out to measure the cross sections of radioactive residues produced in the interaction of the {sup 16}O ion with {sup 27}Al target nucleus at 19 different energies in very close intervals covering the energy range from {approx_equal}58 to 94 MeV, using the well-known recoil catcher off-line {gamma}-ray spectroscopy technique. The simulation of experimental data was performed using statistical-model-based computer codes, viz., CASCADE, PACE2, and ALICE-91. The analysis of measured excitation functions indicates that these residues are likely to be produced by complete fusion, incomplete fusion, and direct reaction processes. Furthermore, to confirm the contribution of different reaction channels, a complementary experiment was performed that measured the angular distributions of the residues produced in the {sup 16}O+{sup 27}Al system at 85 MeV beam energy. The analysis of the results of both experiments indicates that at these energies, the direct reactions compete with complete fusion and incomplete fusion reaction processes.

• OSTI ID: 21003476
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27
ANGULAR DISTRIBUTION
COMPUTER CODES
DIRECT REACTIONS
EXCITATION FUNCTIONS
GAMMA SPECTROSCOPY
HEAVY ION FUSION REACTIONS
INCOMPLETE FUSION REACTIONS
IONS
MEV RANGE 10-100
OXYGEN 16
REACTION KINETICS
RESIDUES
STATISTICAL MODELS