Tree-level soft emission for two pairs of quarks

被引：0

作者：

Chen, Xinguang ^{[1
]}

Liu, Zhengwen ^{[2
,3
]}

机构：

[1] Univ Sci & Technol China, Sch Gifted Young, Hefei 230026, Peoples R China

[2] Southeast Univ, Tung Yau Ctr, Sch Phys & Shing, Nanjing 210096, Peoples R China

[3] Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, Blegdamsvej 17, DK-2100 Copenhagen, Denmark

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2025年 / 02期

关键词：

Higher-Order Perturbative Calculations; Factorization; Renormalization Group; Scattering Amplitudes; CROSS-SECTIONS; PHOTONS; AMPLITUDES; RADIATION;

D O I：

10.1007/JHEP02(2025)166

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We compute the tree-level current for the emission of two soft quark-antiquark pairs in a hard scattering. We also compute the square of this current and discuss the resulting color correlations, featuring dipole correlations and three-parton correlations. This object is essential for analyzing the infrared singularities at next-to-next-to-next-to-next-to-leading-order (N4LO) predictions in perturbative QCD.

引用

页数：15

共 31 条

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