Heavy-ion optical potential for sub-barrier fusion deduced from a dispersion relation

Journal Article · Tue Mar 01 00:00:00 EST 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.37.998· OSTI ID:5260247

Kim, B T; Kim, H C; Park, K E

The heavy-ion energy-dependent optical potentials for the /sup 16/O+/sup 208/Pb system are deduced from a dispersion relation. These potentials are used to analyze the elastic scattering, fusion, and spin distributions of compound nuclei for the system in a unified way based on the direct reaction theory. It turns out that the energy dependence of the optical potential is essential in explaining the data at near- and sub-barrier energies. The real part of the energy-dependent optical potential deduced was also used in calculating the elastic and fusion cross sections by the conventional barrier penetration model using an incoming wave boundary condition. The predictions of the elastic scattering, fusion cross sections, and the spin distributions of compound nuclei are not satisfactory compared with those from the direct reaction approach. It seems to originate from the fact that this model neglects absorption around the Coulomb barrier region

• Research Organization: Department of Physics, Sung Kyun Kwan University, Suwon 170, Korea
• OSTI ID: 5260247
• Journal Information: Phys. Rev. C; (United States), Vol. 37:3
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
LEAD 208 TARGET
OXYGEN 16 REACTIONS
ELASTIC SCATTERING
HEAVY ION FUSION REACTIONS
BOUNDARY CONDITIONS
COMPOUND NUCLEI
CROSS SECTIONS
DISPERSION RELATIONS
ENERGY DEPENDENCE
MEV RANGE 10-100
MEV RANGE 100-1000
OPTICAL MODELS
SPIN
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
HEAVY ION REACTIONS
MEV RANGE
NUCLEAR REACTIONS
PARTICLE PROPERTIES
SCATTERING
TARGETS
653003* - Nuclear Theory- Nuclear Reactions & Scattering