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本文基于由推广的Chew-Low(弹性散射)静止理论所导得的双介子近似下的分波方程,在略去交叉项的贡献后求得其近似解。由很快上升的介子产生截面计算了D3/2道(T=1/2)弹性散射截面,定性和半定量地解释了π-N第二共振处弹性散射截面中峯的出现、性质、位置和大小。The extended Chew-Low equation for π-N scattering under two pion approximation is solved by neglecting contribution from the crossing terms. From rapidly increasing pion-production cross-section we calculated the elastic scattering cross-section of the D3/2 channal (T=1/2). The peak of elastic scattering cross-section in the second resonance is explained.
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