A planar four-loop form factor and cusp anomalous dimension in QCD

被引：55

作者：

Henn, Johannes M. ^{[1
]}

Smirnov, Alexander V. ^{[2
]}

Smirnov, Vladimir A. ^{[3
]}

Steinhauser, Matthias ^{[4
]}

机构：

[1] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany

[2] Moscow MV Lomonosov State Univ, Ctr Res Comp, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[4] Karlsruhe Inst Technol, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 05期

关键词：

Perturbative QCD; Scattering Amplitudes; DIFFERENTIAL-EQUATIONS; MASSLESS PROPAGATORS; ASYMPTOTIC-EXPANSION; SPLITTING FUNCTIONS; MASTER INTEGRALS; IMPLEMENTATION; ALGORITHM; BEHAVIOR; PARTS;

D O I：

10.1007/JHEP05(2016)066

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 fermionic contribution to the photon-quark form factor to four-loop order in QCD in the planar limit in analytic form. From the divergent part of the latter the cusp and collinear anomalous dimensions are extracted. Results are also presented for the finite contribution. We briefly describe our method to compute all planar master integrals at four-loop order.

引用

页数：17

共 50 条

[11] Matter Dependence of the Four-Loop Cusp Anomalous Dimension
Henn, J. M.
Peraro, T.
Stahlhofen, M.
Wasser, P.
PHYSICAL REVIEW LETTERS, 2019, 122 (20)
[12] Addendum to: Four-loop cusp anomalous dimension in QED
Andrey Grozin
Journal of High Energy Physics, 2019
[13] Four-loop cusp anomalous dimension from obstructions
Cachazo, Freddy
Spradlin, Marcus
Volovich, Anastasia
PHYSICAL REVIEW D, 2007, 75 (10):
[14] Matter dependence of the four-loop QCD cusp anomalous dimension: from small angles to all angles
Brueser, Robin
Grozin, Andrey
Henn, Johannes M.
Stahlhofen, Maximilian
JOURNAL OF HIGH ENERGY PHYSICS, 2019, 2019 (05)
[15] Matter dependence of the four-loop QCD cusp anomalous dimension: from small angles to all angles
Robin Brüser
Andrey Grozin
Johannes M. Henn
Maximilian Stahlhofen
Journal of High Energy Physics, 2019
[16] The full four-loop cusp anomalous dimension in N=4 super Yang-Mills and QCD
Henn, Johannes M.
Korchemsky, Gregory P.
Mistlberger, Bernhard
JOURNAL OF HIGH ENERGY PHYSICS, 2020, (04):
[17] Full Angle Dependence of the Four-Loop Cusp Anomalous Dimension in QED
Brueser, R.
Dlapa, C.
Henn, J. M.
Yan, K.
PHYSICAL REVIEW LETTERS, 2021, 126 (02)
[18] Four-loop planar amplitude and cusp anomalous dimension in maximally supersymmetric Yang-Mills theory
Bern, Zvi
Czakon, Michael
Dixon, Lance J.
Kosower, David A.
Smirnov, Vladimir A.
PHYSICAL REVIEW D, 2007, 75 (08):
[19] The four-loop QCD β-function and anomalous dimensions
Czakon, M
NUCLEAR PHYSICS B, 2005, 710 (1-2) : 485 - 498
[20] Three Loop Cusp Anomalous Dimension in QCD
Grozin, Andrey
Henn, Johannes M.
Korchemsky, Gregory P.
Marquard, Peter
PHYSICAL REVIEW LETTERS, 2015, 114 (06)

← 1 2 3 4 5 →