B(E2) Evaluation for 0+ to 2+ Transitions in Even-Even Nuclei

Abstract: A collaborative study by Brookhaven-McMaster-Central Michigan is underway to evaluate B(E2)$\uparrow$ for 0$<sup>{+}_{1}$ $\rightarrow$ 2$<sup>{+}_{1}$ transitions. This work is a continuation of a previous USNDP evaluation and has been motivated by a large number of recent measurements and nuclear theory developments. It includes an extended compilation, data evaluation procedures and shell model calculations. The subset of B(E2)$\uparrow$ recommended values for nuclei of relevance to the double-beta decay problem is presented, and evaluation policies of experimental data and systematics are discussed. Future plans for completion of the B(E2;0$<sup>{+}_{1}$ $\rightarrow$ 2$<sup>{+}_{1}$) evaluation project are also described.