The measures for SU(4) symmetry and the Wigner energy, in terms of double binding energy differences, for even-even and odd-odd nuclei in A = 56-100 mass region are studied using the infinite nuclear matter (INM) mass model of atomic nuclei. The INM model predicts that the SU(4) symmetry is broken in even-even nuclei but remnants of this symmetry should be present in N=Z odd-odd nuclei in this region. Similarly, the estimates of the Wigner energy indicate that the T=0 states in these nuclei should start appearing around 0.5 MeV above the ground states that are T=1 in nature.
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