Quasi-elastic scattering measurement for ²⁸Si+²³²Th reaction

The cold-fusion reactions based on lead or bismuth targets and the hot-fusion reactions based on the actinide targets, are successfully used in the synthesis of heavy and super-heavy elements (SHE). In order to study the anticipated transition the reaction ²⁸Si + ²³²Th has been chosen with a projectile right in the middle between ¹⁶O and ⁴⁸Ca; the chosen target ²³²Th has similar collective states as ²³⁸U. To study the effect of projectile and target excitation on fusion, the barrier distribution (BD) for the ²⁸Si+²³²Th system forming SHE ²⁶⁰Rf₁₀₄ is measured. To extract the BD, the technique of quasi-elastic (QE) scattering at large backward angles is utilized