N-N SCATTERING AT 4 BeV. LABORATORY ENERGY

Abstract

摘要 本文给出了带区近似下N-N散射振辐虚部的表示式。利用π-N低能散射的实验数据,计算了实验室动能为4BeV时带区4μ22内谱函数对N-N散射总截面的贡献。对质子-质子散射得到和实验比较符合的结果,但是在3—4BeV.之间,中子-质子散射的总截面比质子-质子散射的总截面大得多。可以认为,这个结果表示较远的谱函数也很重要。 Abstract The expression of the absorptive part of the nucleon-nucleon scattering amplitude in the "strip approximation" is given. Utilizing the experimental data of low energy π-N scattering, the total cross section of N-N inelastic scattering at 4 BeV. laboratory energy is calculated. For p-p scattering we find σin=25 mb., in agreement with the experimental data. However, the isotopic spin dependence is important in the energy region 3-4 BeV. The result shows that the internal part of the spectral function may be also important. 作者及机构信息 陈时, 戴元本 1. 中国科学院 Authors and contacts CHEN SHIH, DAI YUANG-BENG 1. 中国科学院 参考文献 [1] 施引文献