论文标题
锥形依赖的喷气频谱在重离子碰撞中
Cone-size dependent jet spectrum in heavy-ion collisions
论文作者
论文摘要
真空中的喷气机对应于通过对QCD的软和共线发散敏感的分支过程形成的多方配置。在重型离子碰撞中，通过与培养基相互作用刺激的能量损失过程以深远的方式影响喷气式可观察物。射流碎片分解为一个三阶段的过程，涉及中等规模以上的真空样排放，诱导的排放是通过中长长度增强的，最后是长距离真空样片段化。这种形式主义导致了一种新颖的，非线性的喷气能量损失。在本次演讲中，我们介绍了针对重型离子碰撞中的$ r $ ro $依赖性喷气频谱的小$ r $重新点燃和能源损失的综合效果的新结果。
Jets in the vacuum correspond to multi-parton configurations that form via a branching process sensitive to the soft and collinear divergences of QCD. In heavy-ion collisions, energy loss processes that are stimulated via interactions with the medium, affect jet observables in a profound way. Jet fragmentation factorizes into a three-stage process, involving vacuum-like emissions above the medium scale, induced emissions enhanced by the medium length and, finally, long-distance vacuum-like fragmentation. This formalism leads to a novel, non-linear resummation of jet energy loss. In this talk we present new results on the combined effects of small-$R$ resummation and energy loss to compute the $R$-dependent jet spectrum in heavy-ion collisions.
