Structural investigation of the nuclei in Z=52 to Z=78 region by E-GOS method

The E-GOS (E-Gamma Over Spin) method allows us to empirically determine the structure of a nucleus as a function of its angular momentum through a comparison to the ideal limits of perfect harmonic vibrator and axially symmetric rotor. Unique to the E-GOS method, no preconceived notion of nuclear structure is necessary. It differs from other common models by analyzing structural evolution as a function of angular momentum rather than as a function of nucleon number. In this project, we applied E-GOS method to the yrast bands of nuclei in the region Z=52 to Z=78 by plotting the ratio of Gamma Ray Energy divided by spin against that spin. Afterwards, we arranged the plots in order of increasing nucleon number. Mapping the E-GOS curves in this manner shows a clear transition from vibrational to rotational motion.