Revisiting anomalous B ( E 2 ; 4 + 1 → 2 + 1 ) / B ( E 2 ; 2 + 1 → 0 + 1 ) values in 98 Ru and 180 Pt

Recently, a set of nine nonmagic nuclei with anomalous values of the B(E2) ratio B 4/2 ≡ B(E2; 4 + 1 → 2 + 1)/B(E2; 2 + 1 → 0 + 1) < 1 were identified. Such values are outside the range allowed by current collective models. In the present work, the B(E2; 4 + 1 → 2 + 1) values for two of these nuclei, 98 Ru and 180 Pt, were re-measured to determine if the current literature values for these nuclei are correct. 98 Ru was studied in a 27 Al(98 Ru, 98 Ru *) Coulomb excitation experiment in inverse kinematics, while the lifetime of the 4 + 1 state in 180 Pt was measured in a 122 Sn(62 Ni, 4n) 180 Pt recoil distance method (RDM) experiment. For both nuclei, the remeasured B 4/2 values are well above 1, removing the deviations from collective models.