发表机构
University of Jyväskylä; Helsinki Institute of Physics(于韦斯屈莱大学; 赫尔辛基物理研究所)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本研究在色玻璃凝聚框架下计算半包容深度非弹性散射截面,验证于HERA数据,预测EIC上饱和效应导致显著核抑制,可约束BK演化初始条件,表明SIDIS对非线性QCD动力学敏感。
AI 中文摘要
我们在色玻璃凝聚框架内研究了小-$x$半包容深度非弹性散射(SIDIS)中的胶子饱和效应。我们在偶极子图像中计算了领头阶的SIDIS截面,并将其表示为偶极子-靶散射振幅的函数。我们通过与HERA测量的带电强子谱进行比较来验证我们的框架。我们对电子-离子对撞机(EIC)的预测表明,饱和效应导致SIDIS截面出现显著的核抑制,并能对从包容DIS数据中提取的Balitsky-Kovchegov演化初始条件提供互补约束。这些结果表明,EIC上的SIDIS测量对饱和区域中的非线性QCD动力学敏感。
英文摘要
We investigate gluon saturation effects in semi-inclusive deep inelastic scattering (SIDIS) at small-$x$ within the Color Glass Condensate framework. We compute the SIDIS cross section at leading order in the dipole picture, expressing it in terms of the dipole-target scattering amplitude. We validate our framework by comparing with the charged hadron spectra measured at HERA. Our predictions for the EIC indicate that saturation effects result in significant nuclear suppression in the SIDIS cross section, and can provide complementary constraints on the initial condition for the Balitsky-Kovchegov evolution extracted from inclusive DIS data. These results demonstrate that SIDIS measurements at the EIC are sensitive to nonlinear QCD dynamics in the saturation regime.
Comments13 pages, 11 figures