论文标题
dihadron在NLO的DIS生产：真正的更正
Dihadron production in DIS at NLO: the real corrections
论文作者
论文摘要
通过使用轻锥函数的形式主义以及彩色玻璃冷凝物有效理论，我们考虑了在Electron-proton或Electron-Nucleus中生产一对Hadron的临时校正（NLO），在小Bjorken $ x $上碰撞。为了关注的顺序，该过程涉及将虚拟光子波动到夸克式群岛对，然后从夸克或古夸克发出gluon。对于具有横向极化的虚拟光子的情况，我们计算了真正的NLO校正，其中发出的gluon存在于最终状态。我们首先计算Quark-Antiquark-Gluon系统生产的树级横截面，然后通过整合Gluon的运动学来推断出真正的NLO校正以产生Dihadron。我们详细验证的是，在柔软的gluon的限制中，我们的计算重现了Quark-Antiquark生产的前阶横截面的B-Jimwlk演变的（实际部分）。同样，在gluon与其发射极线的极限中，我们在碎片函数的DGLAP演化中恢复了真实项。随后的出版物中，我们中的一个人将提出对Dihadron生产的虚拟NLO更正。
By using the formalism of the light-cone wave function along with the colour glass condensate effective theory, we consider next-to-leading order (NLO) corrections to the production of a pair of hadrons in electron-proton, or electron-nucleus, collisions at small Bjorken $x$. To the order of interest, the process involves the fluctuation of a virtual photon into a quark-antiquark pair, followed by the emission of a gluon from either the quark, or the antiquark. For the case of a virtual photon with transverse polarization, we compute the real NLO corrections, where the emitted gluon is present in the final state. We first compute the tree-level cross-section for the production of the quark-antiquark-gluon system and then deduce the real NLO corrections to dihadron production by integrating out the kinematics of the gluon. We verify in detail that, in the limit where the gluon is soft, our calculation reproduces the (real piece of the) B-JIMWLK evolution of the leading-order cross-section for quark-antiquark production. Similarly, in the limit where the gluon is collinear with its emitter, we recover the real terms in the DGLAP evolution of the fragmentation function. The virtual NLO corrections to dihadron production will be presented by one of us in a subsequent publication.
