论文标题
近代到领先的订单更正到Quark Quasi Parton分布功能
Next-to-next-to-leading order corrections to quark Quasi parton distribution functions
论文作者
论文摘要
我们在大动量有效理论中介绍了Quark Quasi Parton分布函数（PDFS）的近代到次要领域（NNLO）计算。明确建立了该顺序的非平凡分解，并得出了准分布与灯酮分布之间的完整分析匹配系数。我们证明了NNLO数值贡献可以大大改善提取的PDF的行为。通过计划的电子离子对撞机的前所未有的核子断层扫描的精确研究，具有我们的NNLO结果的高精度晶格QCD模拟将使可以测试QCD理论，并且将获得对核子PDF的更精确的结果。
We present the next-to-next-to-leading order (NNLO) calculation of quark quasi parton distribution functions (PDFs) in the large momentum effective theory. The nontrivial factorization at this order is established explicitly and the full analytic matching coefficients between the quasi distribution and the lightcone distribution are derived. We demonstrate that the NNLO numerical contributions can improve the behavior of the extracted PDFs sizably. With the unprecedented precision study of nucleon tomography at the planned electron-ion collider, high precision Lattice QCD simulations with our NNLO results implemented will enable to test the QCD theory and more precise results on the PDFs of nucleons will be obtained.
