-
[1]
引用本文: |
Citation: |
计量
- 文章访问数: 3006
- PDF下载量: 376
- 被引次数: 0
[1] |
引用本文: |
Citation: |
摘要: 本文用等效极点代替π-N散射左割线,计算了交叉过程短程相互作用的贡献,在相移计算中得到与实验一致的低能p波3-3共振。计算结果要求至少用四个极点来代替左割线的贡献,说明左割线振幅的行为是相当复杂的。
Abstract: In this paper, it is assumed that the left-cut of π-N scattering can be better approximated by four effective poles than by only one or two poles in the usual way. The author has made calculation for the contribution due to the short range interactions of the cross-diagram. The resulting phase-shift agrees with the experiment[3], and indicates that low-energy p-wave 3-3 resonance exists. Furthermore, from the calculated results, it can be seen that, to make better approximation, at least four poles must be taken, therefore the behaviour of the amplitude of the left-cut is very complicated.