论文标题

Gluon饱和的独家矢量介子生产横截面的缩放特性

Scaling properties of exclusive vector meson production cross section from gluon saturation

论文作者

Matousek, Gregory, Khachatryan, Vladimir, Zhang, Jinlong

论文摘要

从现象学研究中已经知道,在核中的独家深度无弹性散射中,在核质量数量,$ a $和光子虚拟性中,载体中膜产量横截面的缩放行为似乎是由于Gluon饱和效应而被严重修改的。在这项工作中,我们基于使用Monte Carlo事件生成器SAR {\ em T} RE继续进行现实的设置中的这些研究。我们对电子离子对撞机的运动学进行了定量预测,重点是$ a $ a $ q^{2} $缩放图片,同时建立了一个平方的动量转移,$ t $,其中有可能在EIC上观察到这种缩放的迹象。我们的结果表示为媒介膜产量衍射横截面和/或其比率的伪数据,这是通过解析事件生成器通过涂抹功能收集的数据而获得的,从而模拟了未来EIC的拟议检测器分辨率。

It is already known from phenomenological studies that in exclusive deep-inelastic scattering off nuclei there appears to be a scaling behavior of vector meson production cross section in both nuclear mass number, $A$, and photon virtuality, $Q^{2}$, which is strongly modified due to gluon saturation effects. In this work we continue those studies in a realistic setup based upon using the Monte Carlo event generator Sar{\em t}re. We make quantitative predictions for the kinematics of the Electron-Ion Collider, focusing on this $A$ and $Q^{2}$ scaling picture, along with establishing a small region of squared momentum transfer, $t$, where there are signs of this scaling that may potentially be observed at the EIC. Our results are represented as pseudo-data of vector meson production diffractive cross section and/or their ratios, which are obtained by parsing data collected by the event generator through smearing functions, emulating the proposed detector resolutions for the future EIC.

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