Meson-Nucleon Scattering in Low Energy Region
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概要
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The scattering length a for the s-wave of the process π^++p→π^++p is calculated by tracing the experimental data for α_3. Comparing the value of 4πa^2 with the theoretical value of cross section in the Thomson limit, it is found that the coupling constant f^2 / 4π is nearly equal to 1. Because of the importance of meson-meson interaction inferred from the analysis of meson reaction at 1.5 Bev, the scattering cross sections by this interaction are estimated and are compared with those by the usual meson-nucleon interaction. When the(λ / 16)(φ_αφ_α)^2 -interaction is adopted as a simple model, the effect of this interaction is very small in the case of the value of(λ / 4π)^2≅1.5 which has been adopted to explain the π-2π process at 1.5 Bev.
- 理論物理学刊行会の論文
著者
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Minami Shigeo
Department Of Applied Physics Faculty Of Engineering Osaka University
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Ito Daisuke
Physics Department Saitama University
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