Nuclear isomerism in 100Sn neighbors

Data on B(E2), B(M1) and B(E1) were obtained from lifetime measurements in 103,105,107In, 105-108Sn and 109Sb. These data helped us to assign the nuclear configurations to the involved states. The experimental B(E2) and B(M1) values in the Sn isotopes worked as litmus paper to test the wave functions calculated on the basis of the shell model. The present calculation gave a qualitative description of M1 transitions in the Sn isotopes but has not yet succeeded in quantitative estimation of B(M1). Calculated B(E2) values were far from the reality since 100Sn was assumed there to be inert against excitation. (orig.)