Investigation of the role of break-up processes on the fusion of {sup 16}O induced reactions

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.014601· OSTI ID:21289992

Singh, Devendra P; Unnati,; Singh, Pushpendra P; Yadav, Abhishek; Singh, B P; Prasad, R ^[1]; Sharma, Manoj Kumar ^[2]; Golda, K S; Kumar, Rakesh ^[3]; Sinha, A K ^[4]

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1. Department of Physics, Aligarh Muslim University, Aligarh (UP) 202 002 (India)
2. Department of Physics, S. V. College, Aligarh (UP) 202 001 (India)
3. Inter-University Accelerator Center, Aruna Asaf Ali Marg, New Delhi 110 067 (India)
4. UGC-DAE-CSR, Bidhan Nagar, Kolkata 700 098 (India)

An experiment was carried out to explore heavy ion incomplete fusion reaction dynamics, within the framework of the break-up fusion model, at energies near and above the Coulomb barrier. Excitation functions for several radionuclides produced via xn, pxn, and {alpha}xn channels were measured in the {sup 16}O+{sup 181}Ta system at energies of {approx_equal}76-100 MeV. The experimental excitation functions were compared with those calculated using the theoretical model code PACE4. It was observed that excitation functions of xn/pxn channels are in good agreement with theoretical predictions. However, a significant enhancement in the measured excitation functions of {alpha}-emitting channels was observed and attributed to the incomplete fusion processes. The incomplete fusion fraction (F{sub ICF}) that gives the relative importance of complete and incomplete fusion processes was found to increase with energy. The results are discussed in terms of {alpha}-cluster structure of the projectile on various fusion reactions.

• OSTI ID: 21289992
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB FIELD
EXCITATION FUNCTIONS
FORECASTING
HEAVY ION REACTIONS
HEAVY IONS
INCOMPLETE FUSION REACTIONS
MEV RANGE 10-100
OXYGEN 16 TARGET
RADIOISOTOPES
TANTALUM 181