AI 中文总结
首次在非微扰区域对胶子Collins-Soper核进行约束，利用格点QCD，在接近物理π介子质量、单格距及大动量有效理论次领头对数匹配下，给出特定横向动量尺度约束，迈出QCD中可控确定该核的第一步，有现象学意义及实验相关性。
AI 中文摘要
胶子Collins-Soper核编码了横向动量依赖的胶子分布的快度演化，首次在非微扰区域对横向动量尺度\(q_{T} \in [ 300\text{ MeV}, 1.3\text{ GeV}]\)进行了约束。约束是在格点QCD中，在接近物理π介子质量\(M_\pi = 172(3)\text{ MeV}\)、单格距\(a = 0.15\text{ fm}\)以及大动量有效理论中的次领头对数匹配下确定的。这些结果是在QCD中可控确定胶子Collins-Soper核的第一步，最终具有现象学意义并与当前和未来对强子物质胶子结构敏感的实验相关。
英文摘要
The gluon Collins-Soper kernel, which encodes the rapidity evolution of transverse-momentum-dependent gluon distributions, is constrained for the first time in the nonperturbative regime, for transverse momentum scales $q_{T} \in [ 300\text{ MeV}, 1.3\text{ GeV}]$. The constraints are determined in lattice QCD at a close-to-physical pion mass $M_π= 172(3)\text{ MeV}$, a single lattice spacing $a=0.15\text{ fm}$, and next-to-next-to-leading logarithmic matching in Large-Momentum Effective Theory. These results represent the first step toward a controlled determination of the gluon Collins-Soper kernel in QCD, with eventual phenomenological import and relevance to present and future experiments sensitive to the gluon structure of hadronic matter.
Comments24 pages, 16 figures
