The Drell-Yan hadronic tensor for electromagnetic (EM) current is calculated in the Sudakov region \( s\gg {Q}^2\gg {q}_{\perp}^2 \) with \( \frac{1}{Q^2} \) accuracy, first at the tree level and then with the double-log accuracy. It is demonstrated that in the leading order in N_c the higher-twist quark-quark-gluon TMDs reduce to leading-twist TMDs due to QCD equation of motion. The resulting tensor for unpolarized hadrons is EM gauge-invariant and depends on two leading-twist TMDs: f₁ responsible for total DY cross section, and Boer-Mulders function \( {h}_1^{\perp } \). The order-of-magnitude estimates of angular distributions for DY process seem to agree with LHC results at corresponding kinematics.

电磁（EM）电流的Drell-Yan强子张量是在Sudakov区域\（s \ gg {Q} ^ 2 \ gg {q} _ {\ perp} ^ 2 \）中以\（\ frac {1}计算得出的{Q ^ 2} \）精度，首先是树级别，然后是double-log精度。结果表明，由于运动的QCD方程，在N _c的前导顺序中，较高扭曲的夸克-夸克胶子TMD减少为前扭曲的TMD。非极化强子的张量是EM规范不变的，并且取决于两个前向扭转TMD：f ₁负责总DY横截面，以及Boer-Mulders函数\（{h} _1 ^ {\ perp} \）。DY过程的角度分布的数量级估计似乎与相应运动学上的LHC结果一致。