Entrance channel effects in the decay of $190Pt*$ using radioactive Sn beams

The entrance channel effects in the decay of compound nucleus $190Pt*$ formed using different incoming channels i.e. $132Sn+58Ni$ and $126Sn+64Ni$ is studied by using dynamical cluster-decay model (DCM). The neutron-rich radioactive beams of $132Sn$ and $126Sn$ are used here. We find that with the inclusion of deformation effects up to quadrupole (β₂), the structure of potential energy surfaces changes a little bit at ℓ = 0 and significantly at ℓ = ℓ_max. It is also observed that for both the entrance channels, the preformation probability of decaying fragments is almost identical at same ℓ_max and comparable centre of mass energies. This identical potential energy surface behavior and same ℓ_max values in either of entrance channels, enable us to conclude that decay of $190Pt*$ is independent of formation effects. The relevant role of level density parameter is also analyzed.