The study of electric quadrupole transition (E2)‎ in 58Ce and 60Nd nuclei

الملخص EN

Transition strengths  2 w.

u.

M (E2) for gamma transition from first excited 21+ 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 21+ 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  2 w.

u.

M (E2) .

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.