Saturation Correction to Projectile -- some ${\cal{O}}(g^5)$ results within LCPT

Nahid Vasim

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arXiv · 2205.13960

Saturation Correction to Projectile -- some ${\cal{O}}(g^5)$ results within LCPT

Nahid Vasim

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Abstract

We revisited the first saturation correction to projectile in nucleus-nucleus collisions \cite{Chirilli:2015tea} within diagrammatic light cone perturbation theory (LCPT). To get an analytic expression for the saturation correction in projectile authors in \cite{Chirilli:2015tea} calculated complete ${\cal{O}}(g^3)$ amplitudes, where the main results are given in transverse coordinate space. However to find the complete first saturation correction in the projectile, one needs to calculate both ${\cal{O}}(g^3)$ and ${\cal{O}}(g^5)$ gluon production amplitudes. We here present a detailed calculation of a sample graph at ${\cal{O}}(g^5)$ in diagrammatic light cone perturbation theory.

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Nahid Vasim. 2022-05-27. Saturation Correction to Projectile -- some ${\cal{O}}(g^5)$ results within LCPT. https://arxiv.org/abs/2205.13960

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