How transparent are hadrons to pions?
How transparent are hadrons to pions?
复制标题
强子对介子的透明度有多高？
DOI：
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复制
发表时间：
1993
影响因子：
8.6
通讯作者：
M. Strikman
中科院分区：
文献类型：
--
作者：
B. Blättel;G. Baym;L. Frankfurt;M. Strikman
高能强子的散射可以用截面分布函数来描述，它包含了色透明和色不透明现象。在这里，我们推断出一个截面分布的介子射弹的核子一致的数据分布的时刻。使用这个分布，我们计算的概率为π是在一个点状配置和比较预测的基础上相结合的微扰QCD和QCD求和规则。与相应的核子-核子散射分布的比较表明，色透明效应应更明显的介子束。
The scattering of hadrons at high energies can be described by a distribution function of cross sections, which incorporates the phenomena of color transparency and color opacity. We infer here a cross-section distribution for pionic projectiles on nucleons consistent with the data on the moments of the distribution. Using this distribution we calculate the probability for a pion to be in a pointlike configuration and compare with predictions based on a combination of perturbative QCD and QCD sum rules. Comparison with the corresponding distribution for nucleon-nucleon scattering shows that color transparency effects should be more pronounced for a meson beam.