THE STUDY OF ELECTRIC QUADRUPOLE TRANSITION (E2) IN 58Ce AND 60Nd NUCLEI

Transition strengths M(E2)² w.u. for gamma transition from first excited 2^+ 1 states to the ground states that produced by pure electric quadrupole emission in even – even nuclei of 58Ce and 60Nd have been calculated as a function of neutron number (N). The life times for 2^+ 1 excited states together with the intensities of γ0- transitions measurements are used in calculations. The results thus obtained have shown that; the nuclei with magic neutron number such as 58Ce140 and 60Nd142 have minimum value for M(E2)² w.u. The reduced transition probabilities B(E2) are also calculated and compared with the experimental data and other theoretical models. PACS:- 27.60-j, 23.20-g, 23.20.Ck, 23.20.Gq.