标题： CEBAF 89-009实验中4.05 GeV电子从核的非弹性散射的理论方面 显示英文标题

标题： Theoretical aspects of the CEBAF 89-009 experiment on inclusive scattering of 4.05 GeV electrons from nuclei

摘要： 我们比较了最近CEBAF关于核的非选择性电子散射数据与基于核结构函数（SF）与核子和点核子核之间关系的预测。后者包含核动力学，例如除了渐近极限外还包括二体碰撞贡献。除低强度区域外，与数据的吻合良好。计算的三体碰撞贡献似乎太小，无法解释。我们在Gurvitz的标度变量中进行了标度分析，并发现对于$y_G\gtrless 0$，核对的标度函数比值从1偏差小于15-20%。对于$<y_G>0$，随着$Q^2$的增加，标度函数被证明从上方趋近于平台。我们在FSI中只观察到弱的$Q^2$依赖性，在相关运动学区域，这被归因于FSI中出现的NN振幅的衍射性质。这使得难以区分渐近部分和FSI部分，并严重阻碍了以模型无关的方式从标度分析中提取$n(p)$。 显示英文摘要

摘要： We compare recent CEBAF data on inclusive electron scattering on nuclei with predictions, based on a relation between structure functions (SF) of a nucleus, a nucleon and a nucleus of point-nucleons. The latter contains nuclear dynamics, e.g. binary collision contributions in addition to the asymptotic limit. The agreement with the data is good, except in low-intensity regions. Computed ternary collsion contributions appear too small for an explanation. We perform scaling analyses in Gurvitz's scaling variable and found that for $y_G\gtrless 0$, ratios of scaling functions for pairs of nuclei differ by less than 15-20% from 1. Scaling functions for $<y_G>0$ are, for increasing $Q^2$, shown to approach a plateau from above. We observe only weak $Q^2$-dependence in FSI, which in the relevant kinematic region is ascribed to the diffractive nature of the NN amplitudes appearing in FSI. This renders it difficult to separate asymptotic from FSI parts and seriously hampers the extraction of $n(p)$ from scaling analyses in a model-independnent fashion.