论文标题
重新访问密集QCD媒体中的横向动量扩大
Revisiting transverse momentum broadening in dense QCD media
论文作者
论文摘要
我们重新考虑了在浓密的有色培养基中（例如热夸克 - 胶原等离子体或大核）中横向动量扩大的横向动量扩大的问题。在Molière的多个散射理论的框架中，我们重新衍生了一个简单的分析公式，用于喷射淬灭现象学，这既是多个软鲁特福德散射制度。此外，我们通过在现象学中进行详细的分析和数值比较，讨论了动量扩展对非扰动红外部门建模的敏感性：硬热环和陀螺仪wang电位。我们表明，对于参数的相关值，在LHC，RHIC和EIC能量上，非宇宙依赖的贡献可忽略不计，从而巩固了喷气淬灭理论的预测能力。
We reconsider the problem of transverse momentum broadening of a highly-energetic parton suffering multiple scatterings in dense colored media, such as the thermal Quark-Gluon plasma or large nuclei. In the framework of Molière's theory of multiple scattering we re-derive a simple analytic formula, to be used in jet quenching phenomenology, that accounts for both the multiple soft and hard Rutherford scattering regimes. Further, we discuss the sensitivity of momentum broadening to modeling of the non-perturbative infrared sector by presenting a detailed analytic and numerical comparison between the two widely used models in phenomenology: the Hard Thermal Loop and the Gyulassy-Wang potentials. We show that for the relevant values of the parameters the non-universal, model dependent contributions are negligible, at LHC, RHIC and EIC energies thus consolidating the predictive power of jet quenching theory.
