AI 中文总结
该研究提出了基于大能量对数重求和的重离子碰撞喷注碎裂理论框架，将喷注淬火与胶子饱和物理结合，计算喷注核修正因子，为喷注淬火精确研究提供统一微扰描述。
AI 中文摘要
我们提出了一个基于大能量对数重求和的重离子碰撞中喷注碎裂的理论框架。利用喷注淬火特有的标度 hierarchy，我们证明了喷注函数满足 Banfi-Marchesini-Smye 演化方程，其中介质诱导的能量损失和色退相干被编码在初始条件中。该结构揭示了与饱和物理的密切对应关系，特别是相干角作为饱和标度的类似物，在非线性演化下表现出相同的渐近标度行为。作为原理验证，我们计算了喷注核修正因子，以量化真空辐射与介质诱导色退相干之间的相互作用。我们的框架为类真空部分子簇射、介质诱导辐射和色相干效应提供了统一的微扰描述，为在 RHIC 和 LHC 上对喷注淬火进行精确研究铺平了道路。
英文摘要
We present a theoretical framework for jet fragmentation in heavy-ion collisions based on the resummation of large energy logarithms. Exploiting the hierarchy of scales characteristic of jet quenching, we show that the jet function obeys the Banfi-Marchesini-Smye evolution equation, with medium-induced energy loss and color decoherence encoded in the initial condition. This structure reveals a close correspondence with saturation physics. In particular, the coherence angle emerges as the analog of the saturation scale and exhibits the same asymptotic scaling behavior under nonlinear evolution. As a proof of principle, we compute the jet nuclear modification factor to quantify the interplay between vacuum radiation and medium-induced color decoherence. Our framework provides a unified perturbative description of vacuum-like parton showers, medium-induced radiation, and color-coherence effects, paving the way for precision studies of jet quenching at RHIC and the LHC.
Comments10 pages, 4 figures
