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arXiv 1611.02436hep-ph
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饱和度和几何缩放

Saturation and geometrical scaling

Michal Praszalowicz

摘要:

我们讨论了几何标度的出现作为QCD的非线性演化方程的结果,它产生了一个新的动力学标度,称为饱和动量:Qs。在没有其他能量尺度存在的运动学区域中,粒子谱表现出几何标度(GS),即它们依赖于比率pT=Qs,并且能量依赖性仅通过饱和动量的能量依赖性进入。我们用实验数据对不同体系中的GS假说进行了验证。

英文摘要:

We discuss emergence of geometrical scaling as a consequence of the nonlinear evolution equations of QCD, which generate a new dynamical scale, known as the saturation momentum: Qs. In the kinematical region where no other energy scales exist, particle spectra exhibit geometrical scaling (GS), i.e. they depend on the ratio pT=Qs, and the energy dependence enters solely through the energy dependence of the saturation momentum. We confront the hypothesis of GS in different systems with experimental data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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