Fusion, resonances and scattering in12C+12C reaction

Analysis of16O +28Si elastic scattering in the laboratory energy range 50.0 MeV to 142.5 MeV

“…We believe that these are closely related to the orbitinglike phenomenon, surface transparency and resonance structure associated with the 16 O + 28 Si system. The orbiting phenomenon is used to explain enhanced back angle oscillations in σ (θ) in the 16 O + 28 Si system at a laboratory energy E L = 55.0 MeV [16]. In addition to this, the orbiting phenomenon is invoked to give a basis for the resonance structures observed around the barrier region [16,17].…”

“…In principle, optical potentials can be understood 'microscopically' using effective interactions and density distributions. In addition to the general features mentioned above, several systems such as α + 12 C, α + 16 O, α + 40 Ca [1][2][3][4][5][6] and 16 O + 28 Si [7,8] show oscillatory structures in the back angle region and dinuclear systems, namely 12 C + 12 C [9, 10], 16 O + 16 O [11,12] and 12 C + 16 O [13][14][15], exhibit a resonance-like phenomenon in their results of elastic scattering cross sections. These features are interesting in studying additional properties such as glory, interference between barrier and internal waves, orbiting phenomena and resonances.…”

“…It is known that to incorporate these features in phenomenological optical potentials one has, in general, to use potential form factors different from the Woods-Saxon (WS) form in order to simulate the dominant physical process giving rise to these oscillations. 16 O + 28 Si is a system where substantial experimental data on the differential scattering cross section σ (θ) are available over a range of energies. We believe that these are closely related to the orbitinglike phenomenon, surface transparency and resonance structure associated with the 16 O + 28 Si system.…”

“…16 O + 28 Si is a system where substantial experimental data on the differential scattering cross section σ (θ) are available over a range of energies. We believe that these are closely related to the orbitinglike phenomenon, surface transparency and resonance structure associated with the 16 O + 28 Si system. The orbiting phenomenon is used to explain enhanced back angle oscillations in σ (θ) in the 16 O + 28 Si system at a laboratory energy E L = 55.0 MeV [16].…”

“…In addition to this, the orbiting phenomenon is invoked to give a basis for the resonance structures observed around the barrier region [16,17]. In this paper, we explore the phenomenon of elastic scattering in the 16 O + 28 Si system fully within the framework of a suitably constructed phenomenological LC potential suggested by Lee and Chan [18] with a minimum number of parameters and based on these predict additional properties at several energies. We have not been able to construct another equally satisfactory phenomenological potential.…”