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arXiv 1902.04483hep-phnucl-th
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彩色玻璃凝聚体中多粒子产生的非程函修正

Non-eikonal corrections to multi-particle production in the Color Glass Condensate

Pedro Agostini, Tolga Altinoluk, Néstor Armesto

摘要:

我们认为非程函修正粒子生产的彩色玻璃凝聚体源于放松的冲击波近似的目标,获得一个有限的纵向尺寸。我们推导出修改后的表达式的Lipatov顶点,考虑到这个有限的目标宽度。这个表达式被用来计算单,双和三重胶子生产的两个稀释对象的散射有效的在所有的订单中的颜色的数量的扩展在Eklma图限制。我们证明和推广以前的结果,并讨论了这些非程函修正,诱导远离和近侧峰之间的差异对两个粒子的相关性可能产生的影响。

英文摘要:

We consider the non-eikonal corrections to particle production in the Color Glass Condensate stemming from the relaxation of the shockwave approximation for the target that acquires a finite longitudinal dimension. We derive a modified expression of the Lipatov vertex which takes into account this finite target width. This expression is employed to compute single, double and triple gluon production in the Glasma graph limit valid for the scattering of two dilute objects, at all orders in the expansion in the number of colors. We justify and generalize previous results, and discuss the possible implications on two particle correlations of these non-eikonal corrections that induce differences between the away- and near-side peaks.

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