SU(6) Assignment for the Positive-Parity Nucleonic Resonances

A symmetric quark-model analysis of the two-quantum excited nucleonic states is carried out. By assigning the

N (1470) P_{11}

and

Δ (1690) P_{33}

to the states in the

{(56, 0^{+})}_{N = 2}

and the

N (1860) P_{13}

N (1688) F_{15}

Δ (1890) F_{35}

, and

Δ (1950) F_{37}

to the states in the (56,

2^{+}

) supermultiplets, it is found that the

N (1780) P_{11}

and the

Δ (1910) P_{31}

fit exceedingly well to the states in the (70,

0^{+}

), and the calculated mass value for the

J^{P} = {\frac{7}{2}}^{+}

nucleonic state in the (70,

2^{+}

) is comparable to that of the observed

N (1990) F_{17}

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