Role of deformations in the decay of 219,221Ac* nuclei formed in 16O+203,205Tl reactions

The dynamical cluster decay model is applied to understand the decay of 16O+203,205Tl→219,221Ac* reactions by including the deformation effects upto β2i within the hot optimum orientation approach. The evaporation residues of 219,221Ac* nuclei are fitted in the excitation energy range ECN* = 33.1 to 62.4 MeV, by optimizing the only parameter of the model, called neck-length parameter. The DCM calculated cross-sections find nice agreement with the experimental data. The spherical fragmentation of the interacting nuclei is also applied at lowest and highest excitation energies to look for the change in the decay profile while going from the β2i to spherical distribution of fragments. In addition to this, the effect of deformations is also investigated to analyze interaction/ scattering potential.