The evaporation residue of ^112-134Ba within relativistic mean field theory

The phenomenon of nuclear fission was discovered about 75 years back, still many crucial features of its dynamics are yet to be explained. The exploration is possible when one can view such aspects from the microscopic theoretical point of view. Usually, the common methods used in such investigations are non-relativistic and relativistic self-consistent mean-field theories. These theories are capable for finding the static fission path through entire potential energy landscape spanned over relevant degrees of freedom. The extension of these model calculations for unstable nuclei up to the drip lines is still a challenge. We then choose the relativistic mean theory (RMF) to explore the origin of neck configuration, assumed to be preformed clusters in the fission state, i.e., the formation of elongated neck in the fission state of a nucleus. First of all, we have presented the gross nuclear properties, like the binding energy, deformation parameter β₂, charge radius r_ch and the nucleonic density distributions for the isotopic chain ^112-134Ba, using an axially deformed RMF theory with NL3 parameter set