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本文用极点近似和有破坏的SU(3)对称结合起来处理了pp的超子对湮灭,得到了与实验符合的角分布与分支比。对称性破坏表现在:(1)质量差,(2)在顶点引进一个反比于介子质量的因子。In this work the hyperon pair annihilation of pp is treated by means of the pole approximation and a broken SU(3) symmetry. There are two sources of symmetry breaking: (1) mass differences, (2) at each vertex there is a factor inversely proportional to the meson mass. The calculated angular distribution and branching ratio fit the experimental data.
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