Revisiting Grodzins systematics of B(E2) values

Using Grodzins formalism as modified by S. Raman et al. (1988) [7] and D. Habs et al. (2002) [14], we analyze systematics of our latest evaluated B(E2) data for all the even-even nuclei in Z=2-104 range published in At. Data Nucl. Data Tables 107 (2016) 1 [5]. The analysis indicates a low predictive power of systematics for a large number of cases, and a strong correlation between B(E2) fit values and nuclear structure effects. These findings provide a strong rationale for introduction of individual or elemental (grouped by Z) fit parameters. The current estimates of quadrupole collectivities for systematics of even-even nuclei yield complementary values for comparison with experimental results and theoretical calculations. The lists of fit parameters and predicted B(E2) values are given and possible implications are discussed.