Present Status and Open Problems of Hadron-nuclear Physics at Intermediate Energy
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摘要: 中能强子与核的散射研究发现,400MeV以上似乎普遍存在着截面理论值偏低的现象,例如,质子-核(PA)散射、π介子-核(πA)散射、k分子-核(kA)散射的微分戳面传统理论值比实验结果约低20%.引入相对论动力学可使PA散射理论结果大为改善。然而,在核子层次上的各种修正对介子-核散射的理论结果改善甚小.人们正在从更深入的非核子自由度寻找原因. Traditional theoretical investigations of the hadron-scattering cross sections ina wide range of nuclei in the intermediate-energy region (above 400MeV) have revealed obvious discrepancies with the existing experimental data. It is about 20% lower than the datafor hadronic probes such as proton,pion and kaon. For proton-nucleus sacattering, an agreement with experiment may significantly be improved by introduction of relativistic dynamices. For meson probes, however...
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关键词:
- 强子-核散射 /
- 非相对论和相对论散射理论 /
- 核介质效应.非核子自由度
Abstract: Traditional theoretical investigations of the hadron-scattering cross sections ina wide range of nuclei in the intermediate-energy region (above 400MeV) have revealed obvious discrepancies with the existing experimental data. It is about 20% lower than the datafor hadronic probes such as proton,pion and kaon. For proton-nucleus sacattering, an agreement with experiment may significantly be improved by introduction of relativistic dynamices. For meson probes, however... -
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