Kürkçüoğlu, Mehmet Ertan Süleyman Demirel Üniversitesi - Fen-Edebiyat Fakültesi - Fizik Bölümü, Turkey , Tülüler, Merve Süleyman Demirel Üniversitesi - Fen-Edebiyat Fakültesi - Fizik Bölümü, Turkey

One-Channel Optical Model Analyses of 16^O+16^O Elastic Scattering around 5 MeV/n by using Additional Shallow Potentials

36043

One-channel optical model (OM) approach is widely used for studying the scattering of light heavy- ions. The main problem in this model is to determine the shape of the OM potential that must produce successful results for explaining the observables of a specific reaction. In this study, the effects of shallow additional potentials, that added to the nuclear potential for describing the 16O +16O elastic scattering at the incident energies ELAB=75.0, 80.6 and 87.2MeV, have been investigated with respect to the experimental data. The most suitable phenomenological potential shape is searched by adding shallow additional potentials to the real or imaginary parts of a nuclear potential having WS2+iWS2 form that used in our OM calculations previously. The agreement between the results of the analyses and the experimental data is evaluated by the χ2 criterion. In general, the analyses using additional potentials in the imaginary part have revealed better results than the additional potentials with the real part. Furthermore, it is found that an additional potential of Woods-Saxon Derivative (WSD) shape used in the imaginary part with a potential depth of 30% reproduces the elastic angular distributions more successfully than the analyses with other shallow additional potential forms.

85

16O+16O elastic scattering , optical model , cross , section , additional potential

Süleyman Demirel University Faculty of Arts and Science Journal of Science

94