N-jettiness soft function at next-to-next-to-leading order in perturbative QCD

被引：0
|
作者：
Agarwal, Prem [1 ]
Melnikov, Kirill [1 ]
Pedron, Ivan [1 ,2 ]
机构：
[1] Inst Theoret Particle Phys, KIT, D-76128 Karlsruhe, Germany
[2] Inst Astroparticle Phys, KIT, D-76344 Eggenstein Leopoldshafen, Germany
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 2024卷 / 05期
关键词：
Higher-Order Perturbative Calculations; Jets and Jet Substructure; DOUBLE-REAL RADIATION; AMPLITUDES;
D O I：
10.1007/JHEP05(2024)005
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 derive a compact representation of the renormalized N-jettiness soft function that is free of infrared and collinear divergences through next-to-next-to-leading order in perturbative QCD. The number of hard partons N is a parameter in the formula for the finite remainder. Cancellation of all infrared and collinear singularities between the bare soft function and its renormalization matrix in color space is demonstrated analytically.
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页数：46
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