In our new approach, evaporation residue cross-sections for new superheavy nuclei with atomic numbers Z = 114−118 are estimated by calculation of vital characteristics of superheavy nuclei synthesis such as the fission barrier height, the compound nucleus formation probability and the survival probability of the residue nuclei. Our presented estimation is in good agreement with available experimental data. In addition, this new approach allowed us to predict the evaporation residue cross-sections for superheavy nuclei with Z = 119 and 120 via introducing synthesis box and compare our results with other models. It is shown that the fission barrier heights of two nuclei with Z = 119 and 120 are comparable with their corresponding neutron separation energies. It is suggested that for the synthesis of new superheavy nuclei, it is proper to use nearly double magic nuclei such as 50Ti as our projectile, so that the fission barrier heights remain high.
کلید واژگان :Hot fusion; cross-section; superheavy nuclei; synthesis.
ارزش ریالی : 600000 ریال
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