In large-momentum effective theory (LaMET), calculating parton physics starts from calculating coordinate-space-z correlation functions $\tilde{h}(z,a,P^z)$ in a hadron of momentum $P^z$ in lattice QCD. Such correlation functions involve both linear and logarithmic divergences in lattice spacing a, and thus need to be properly renormalized. We introduce a hybrid renormalization procedure to match these lattice correlations to those in the continuum $\overline{\mathrm{MS}}$ scheme, without introducing extra non-perturbative effects at large z. We analyze the effect of $\mathcal{O}({\mathrm{\Lambda }}_{\mathrm{QCD}})$ ambiguity in the Wilson line self-energy subtraction involved in this hybrid scheme. To obtain the momentum-space distributions, we recommend to extrapolate the lattice data to the asymptotic z-region using the generic properties of the coordinate space correlations at moderate and large $P^z$, respectively.

在大动量有效理论（LaMET）中，计算parton物理场是从计算坐标空间z相关函数开始$\stackrel{〜}{H}（ž，\mathrm{一种}，P^{ž}）$ 在动力的强子中 $P^{ž}$在点阵QCD中。这种相关函数在晶格间距a中涉及线性和对数发散，因此需要适当地重新归一化。我们引入了混合重整化过程，以将这些晶格相关性与连续体中的那些相关$\stackrel{〜}{\mathrm{多发性硬化症}}$方案，而不会在大z处引入额外的非扰动效应。我们分析了$\mathcal{Ø}（{\mathrm{\Lambda }}_{\mathrm{QCD}}）$该混合方案中涉及的威尔逊线自能量减法的不确定性。为了获得动量空间分布，我们建议使用中等和较大坐标空间相关性的一般属性将晶格数据外推到渐近z区域$P^{ž}$， 分别。