Searching for X(5) behavior in nuclei

We have searched even-even nuclei with Zgreater than or equal to20, Ngreater than or equal to20 to find examples displaying the predicted characteristics of X(5) critical point behavior. On the basis of the yrast state energies and yrast intraband transition strengths, the best candidates are Ba-126, Ce-130, and the previously suggested examples of the N=90 isotones of Nd, Sm, Gd, and Dy.