Feasibility of observing the {\alpha} decay chains from isotopes of SHN with Z = 128, Z = 126, Z = 124 and Z = 122

摘要

Taking the Coulomb and proximity potential model for deformed nuclei (CPPMDN)as the interacting potential for the post-scission region, the alpha decayproperties of 34 isotopes of the superheavy nuclei with Z = 128 within therange 306 $\leq$ A $\leq$ 339 have been studied, considering both the parentand daughter nuclei to be deformed. The manuscript also deals with the decayproperties of the isotopes of Z = 126 (within 288 $\leq$ A $\leq$ 339), Z = 124(within 284 $\leq$A $\leq$ 339) and Z = 122 (within 280 $\leq$ A $\leq$ 339).The alpha decay half lives thus evaluated has been compared with the valuesevaluated using other theoretical models and it was seen that, our theoreticalalpha decay half lives matches well with these values. Through the presentstudy, we have underlined and have established the fact that, among the 192isotopes considered in the present study, only those isotopes$^{321-324,328-335}$128, $^{318-320,323-327}$126, $^{305-308,315-322}$124 and$^{298-307,311-314}$122 can be synthesized and detected through alpha decay inlaboratory. As the alpha decay half lives of these superheavy isotopes liewithin the experimental limits, we hope these predictions, on the decay modesof these unknown nuclei, to pave the way for the future experiments. The protonseparation energy calculations on $^{306-339}$128, $^{288-336}$126,$^{284-339}$124 and $^{280-339}$122 superheavy nuclei have also been done andthe study revealed the probable proton emitters among these nuclei.