pp碰撞前后关联的一种基于部分子的描述
A Parton-Based Description of Forward-Backward Correlation in pp Collisions
摘要：
研究了pp碰撞中的前向-后向关联，强调了部分子散射角，避免了与低横动量有关的棘手问题。假设部分子的背向散射是强子关联的起源，则前后多重性协方差的性质可以基本上独立于强子化的细节而导出。在没有任何动力学输入的情况下，伪快度的相关范围从研究中出现，从而消除了相关长度具有任何基本意义的概念。试图将结果与自相关中看到的两个组件的结构。
英文摘要：
Forward-backward correlation in pp collisions is studied in an approach that emphasizes the partonic scattering angles and circumvents the intractable problem related to the transverse momenta that are low. Assuming the back-to-back scattering of partons to be the origin of hadronic correlation, the properties of forward-backward multiplicity covariance can be derived essentially independent of details of hadronization. The range of correlation in pseudo-rapidity emerges from the study without any dynamical input, thus dispelling the notion that correlation length has any fundamental significance. An attempt is made to relate the results to the two-component structure seen in autocorrelation.
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