Selection rules for ^48Cr
  In the single j shell(f_{7/2}){}^{48} Cr is the first even-even nucleus for which there are T=0 (Isoscalar) J=1^{+} states and T=1J=0^{+}These states are here studied. This nucleus ,in the same model space, is mid-shell for both neutrons and protons and this leads to many selection rules. 
Michael Quinonez, Arun Kingan, Xiaofei Yu and L. Zamick
nucl-th