B. Cederwall

The B(E2) anomaly: evidence for a low-lying mixed-symmetry collective excitation mode

Abstract Exceptionally low values of the ratio of electric quadrupole transition rates, $$B_{4/2}\equiv B(E2;4^+_1\rightarrow 2^+_1)/B(E2;2^+_1\rightarrow 0^+_{\textrm{gs}})&lt;1$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>B</mml:mi>...