Systematic study of projectile-structure effect on the fusion-barrier distribution

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.011602· OSTI ID:21596541

Roy, Pratap; Saxena, A; Nayak, B K; Mirgule, E T; John, B; Gupta, Y K; Danu, L S; Vind, R P; Choudhury, R K ^[1]; Kumar, Ashok ^[2]

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1. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India)
2. School of Basic and Applied Sciences, Shobhit University, Meerut, U.P. 250009 (India)

Quasielastic excitation function measurement has been carried out for the {sup 4}He + {sup 232}Th system at {theta}{sub lab}=160 deg. with respect to the beam direction, to obtain a representation of the fusion-barrier distribution. Using the present data along with previously measured barrier distribution results on {sup 12}C, {sup 16}O, and {sup 19}F + {sup 232}Th systems, a systematic analysis has been carried out to investigate the role of target and/or projectile structures on fusion-barrier distribution. It is observed that for {sup 4}He, {sup 12}C, and {sup 16}O + {sup 232}Th reactions, the couplings due to target states only are required in coupled-channel fusion calculations to explain the experimental data, whereas for the {sup 19}F + {sup 232}Th system along with the coupling of target states, inelastic states of {sup 19}F are also required to explain the experimental results on fusion-barrier distribution. The width of the barrier distribution shows interesting transition behavior when plotted with respect to the target-projectile charge product for the above systems.

• OSTI ID: 21596541
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 1; Other Information: DOI: 10.1103/PhysRevC.84.011602; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BEAMS
CARBON 12 REACTIONS
COUPLED CHANNEL THEORY
COUPLING
DISTRIBUTION
EXCITATION FUNCTIONS
FLUORINE 19 REACTIONS
OXYGEN 16 REACTIONS
THORIUM 232 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
FUNCTIONS
HEAVY ION REACTIONS
NUCLEAR REACTIONS
TARGETS