Theoretical study of superheavy elements 294,297Og using different versions of proximity potential

Abstract

Formation of superheavy nuclei 294,297Og is studied via calculation of evaporation residue cross section. We investigated the influence of nuclear potential on the evaporation residue cross section using nine versions of proximity potential as Prox77, Prox88, BW91, Bass73, Bass77, Denisov, CW76, GP77 and Guo2013. Calculations are performed for 65 projectile-target combinations with convenient half lives. It is found that the combinations 46Ca+248Cf and 48Ca+249Cf are most favorable for the synthesis of the elements 294,297Og with evaporation cross sections 1395 and 279 fb for the 3n channel in proximity potential Guo2013. The lowest value of evaporation cross section is obtained for Bass73 potential. We have also examined the agreement of the results obtained from different potentials with the experimental data for the systems 48Ca+245Cm, 48Ca+248Cm, and 48Ca+249Bk. The results obtained from potentials Guo2013, GP77 and CW76 show better agreement with the experimental results in comparison with other potentials.