A new method for matching calculations in the leading approximation in the k _T -factorization approach with the higher-order contributions of perturbation theory, which appear due to the emission of additional hard partons, is proposed. In the proposed method, azimuthal correlations between the leading and subleading jets in a multijet event are considered. The calculations are carried out within the parton Reggeization approach (PRA) that is based on k _T -factorization of hard processes in multi-Regge kinematics, the Kimber–Martin–Ryskin model for nonintegrated parton distribution functions (nPDF), and the effective field theory of Reggeized gluons and quarks proposed by L.N. Lipatov. Theoretical predictions are compared with the CMS collaboration data collected at the Large Hadron Collider at energy \(\sqrt S = 13\) TeV.

中文翻译：

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在QCD限制范围内的多喷射事件中的两喷射相关性

提出了一种新的匹配方法，该方法将 k _T 分解方法中的前导近似中的计算与扰动理论的高阶贡献相匹配 ，这是由于发射了额外的硬质子。在提出的方法中，考虑了一次多发事件中前导和次导射流之间的方位角相关性。这些计算是在基于 k _T 的parton Reggeization方法（PRA）中进行的 多Regge运动学中硬过程的因子分解，非集成parton分布函数的Kimber-Martin-Ryskin模型（nPDF）以及LN Lipatov提出的Reggeized胶子和夸克的有效场论。将理论预测与在大型强子对撞机收集的CMS合作数据进行比较，能量为（\ sqrt S = 13 \）TeV。