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本文讨论了(3/2)-,(1/2)-,(7/2)+等共振态在S?(12)群表示中的填充及其强衰变,发现16016,35100两个表示中的(3/2)-粒子不能衰变到(1/2)+和0-.通过改变运动方程质量项的符号使表示的宇称改变,就能将((3/2)-,8)和((1/2)-,1)填在572表示中,从而使它们能衰变到(1/2)+和0-。但是,((3/2)-,1)和(7/2)+仍然不能通过S?(12)对称的有效顶点衰变,本文还详细分析了S?(12)在基本粒子分类和强衰变中的成功之处与局限性,并讨论了这种局限性产生的原因。The assignments of resonances (3/2)-,(1/2)- and (7/2)+ within the multiplets of S?(12) andtheir strong-decays are discussed. It is found that the ((1/2)++0-) decay modes of the (3/2)- particles belonging to the multiplets 16016 and 35100 are forbidden. By redefining the parity of the representations by changing the sign of the massterms in the wave-equations, it is possible to assign the particles ((3/2)-,8) and ((1/2)-,1) in the representation 572. However,the decays of ((3/2)-,1) and (7/2)+ particles through an effective vertex with S?(12) symmetryare still forbidden. The success and failure of S?(l2) in the problem of classification and strong-decays of elementary particles are analysed and discussed in detail.
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