Question

introduction to nuclear physics

values. assignments for the ground state () and 130 pt] 4. Using the shell model, explain the measured the next three excited states, -,一 and respectively, for?"Ni.

Answer 1

Proton has filled shell so there are no Angular momentum. Newton have unfilled shell and P neutron finished in P_3/2^4 subshell. Hence J^pi = 3/2^- leftarrow indicates odd (Parity) parity = (-1)^l = (-1)^1 = -1 Because s p d f g l = 0 1 2 3 4 If particle goes from general state to exerted state then parity should be conserved i.e. parity should be odd. 1^st excited state rightarrow P_5/2^6 (From Neutron) J^pi = 5/2^- Because it has odd parity 2^nd excited state From Neutron rightarrow P_1/2^2, So J^pi = 1/2^- 3^rd excited state P_3/2^4 (From Proton) J^pi = 3/2^- Note: In nuclear physics (For proton & neutron) transition are possible If only if parity do not charge but for e^- case transition in excited state possible when parity charge.