Hadi Eslamizadeh

The anisotropy of fission fragment angular distribution, evaporation residue cross section and the fission cross-section were calculated for 197Tl formed in 16O 181Ta reactions in the framework of the modified statistical model and the results were compared with the experimental data. The effects of temperature and projection of spin about the symmetry axisK have been considered for calculating potential energy surfaces and fission widths. It was shown that in the framework of the modified statistical model, by choosing appropriate values for the temperature coefficient of the effective potential, ?, and scaling factor of the fission-barrier height, rs, one can satisfactorily reproduce the above-mentioned experimental data. It was also shown that the appropriate values of these parameters for 197Tl are ? = 0.0185 ± 0.0050 MeV?2 and rs = 1.0006 ± 0.0020.