Five-parton scattering in QCD at two loops

被引：24

作者：

Agarwal, Bakul ^{[1
]}

Buccioni, Federico ^{[2
]}

Devoto, Federica ^{[3
]}

Gambuti, Giulio ^{[3
,4
]}

von Manteuffel, Andreas ^{[5
,6
]}

Tancredi, Lorenzo ^{[2
]}

机构：

[1] Karlsruhe Inst Technol KIT, Inst Theoret Phys, D-76131 Karlsruhe, Germany

[2] Tech Univ Munich, Phys Dept, James Franck Str 1, D-85748 Garching, Germany

[3] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England

[4] Univ Oxford, New Coll, Holywell St, Oxford OX1 3BN, England

[5] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[6] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 09期

基金：

欧洲研究理事会; 美国国家科学基金会;

关键词：

PROTON-PROTON COLLISIONS; STRONG-COUPLING CONSTANT; DIFFERENTIAL-EQUATIONS; 7; TEV; CROSS-SECTIONS; PP COLLISIONS; RENORMALIZATION; INTEGRATION; AMPLITUDES; PARTS;

D O I：

10.1103/PhysRevD.109.094025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute all helicity amplitudes for the scattering of five partons in two -loop QCD in all the relevant flavor configurations, retaining all contributing color structures. We employ tensor projection to obtain helicity amplitudes in the 't Hooft-Veltman scheme starting from a set of primitive amplitudes. Our analytic results are expressed in terms of massless pentagon functions, and are easy to evaluate numerically. These amplitudes provide important input to investigations of soft -collinear factorization and to studies of the high-energy limit.

引用

页数：10

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