A revised B(E2; 2+1 -> 0+1) value in the semi-magic nucleus 210Po

The lifetimes of the , the and the states of 210 Po have been measured in the 208 Pb( 12 C, 10 Be) 210 Po transfer reaction by the Doppler-shift attenuation method. The result for the lifetime of the state is about three times shorter than the adopted value. However, the new value still does not allow for a consistent description of the properties of the yrast , , , and states of 210 Po in the framework of nuclear shell models. Quasi-particle Phonon Model (QPM) calculations also cannot overcome this problem thus indicating the existence of a peculiarity which is neglected in both theoretical approaches.