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arXiv 1908.11748hep-phnucl-th
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JIMWLK稀释极限中的不等快度关联函数

Unequal rapidity correlators in the dilute limit of JIMWLK

Tuomas Lappi, Andrecia Ramnath

摘要:

本文研究了彩色玻璃凝聚体有效场论中Jalilian-Marian -Iancu-McLerran- Weigert -Leonidov-Kovner(JIMWLK)随机Langevin图演化中的不等快度关联函数.通过分别演化威尔逊线的直接和复共轭振幅,我们使用的形式来研究大快度分离的两粒子产生。我们表明,两个产生的粒子的速度之间的演化可以表示为一个线性方程,即使在完全非线性极限。我们还展示了如何朗之万形式主义的两个粒子的相关性减少到BFKL图片中的稀释限制和动量空间,提供了一个解释的BFKL演变为一个随机过程的色荷。

英文摘要:

We study unequal rapidity correlators in the stochastic Langevin picture of Jalilian-Marian - Iancu - McLerran - Weigert - Leonidov - Kovner (JIMWLK) evolution in the Color Glass Condensate effective field theory. By separately evolving the Wilson lines in the direct and complex conjugate amplitudes, we use the formalism to study two-particle production at large rapidity separations. We show that the evolution between the rapidities of the two produced particles can be expressed as a linear equation, even in the full nonlinear limit. We also show how the Langevin formalism for two-particle correlations reduces to a BFKL picture in the dilute limit and in momentum space, providing an interpretation of BFKL evolution as a stochastic process for color charges.

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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