核上的多重子切割与硬过程
Multipomeron Cuts and Hard Processes on Nuclei
摘要：
随着核目标的出现，pQCD对硬过程的描述出现了一个新的尺度--饱和尺度。在饱和状态下，熟悉的线性k_ \perp -因子分解失效，必须用非线性k_ \perp -因子分解代替，该分解考虑了对硬过程的吸收和多次散射修正。对应于固定数目的切割坡密子的部分截面（拓扑截面）的预测可以以令人惊讶的直接方式获得。我们讨论了深度非弹性散射的一些应用。
英文摘要：
With nuclear targets comes a new scale into the pQCD description of hard processes - the saturation scale. In the saturation regime, the familiar linear k_\perp-factorization breaks down and must be replaced by a nonlinear k_\perp-factorization, which accounts for absorptive and multiple scattering corrections to the hard process. Predictions for partial cross sections corresponding to a fixed number of cut Pomerons (the topological cross sections) can be obtained in a surprisingly straightforward manner. We discuss some applications to deep inelastic scattering.
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