论文标题
斜part顿分布的出现
Emergence of pion parton distributions
论文作者
论文摘要
只有一个有效的电荷定义了Parton分布函数（DFS）的进化方案，该方案是全端的，严格的，严格的下限和上限在类似乳头的系统的Valence-Quark DFS的所有Mellin矩中。通过与这些边界相一致的晶格调查量子染色体动力学（QCD）的数值模拟来利用当代结果，获得了无参数的预测，对倾斜价，胶水和海DFS的无参数预测。在较大的光动量分数的较大值下，价值夸克df的形式与使用PION波函数的QCD处方行为得出的预测一致。
Supposing only that there is an effective charge which defines an evolution scheme for parton distribution functions (DFs) that is all-orders exact, strict lower and upper bounds on all Mellin moments of the valence-quark DFs of pion-like systems are derived. Exploiting contemporary results from numerical simulations of lattice-regularised quantum chromodynamics (QCD) that are consistent with these bounds, parameter-free predictions for pion valence, glue, and sea DFs are obtained. The form of the valence-quark DF at large values of the light-front momentum fraction is consistent with predictions derived using the QCD-prescribed behaviour of the pion wave function.
