Study of alpha-decay chain for even–even isotopes of Z=120 superheavy nuclei.

The nuclear structure systematics of the superheavy nuclei lying at the extreme of mass for Z = 120 , and their α -decay half-lives have been studied using the relativistic mean-field (RMF) model. The results are obtained using four different point-coupling parameters after analysing the reliability of these parameter sets for the binding energy of experimentally observed nuclei ( Z = 100 –118) by comparing them with the available experimental and WS-4 microscopic calculations. The optimal parameter set thus obtained is further used for predicting the Z = 120 α -decay chain and decay half-lives. [ABSTRACT FROM AUTHOR]