Quark and gluon form factors to four-loop order in QCD: TheNf3contributions

6533b835fe1ef96bd129f3d9

RESEARCH PRODUCT

Quark and gluon form factors to four-loop order in QCD: TheNf3contributions

Robert M. Schabinger Andreas Von Manteuffel Andreas Von Manteuffel

subject

Quark Physics Quantum chromodynamics Particle physics 010308 nuclear & particles physics High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology QCD vacuum Form factor (quantum field theory)Jet (particle physics)01 natural sciences Bottom quark Gluon Massless particle 0103 physical sciences High Energy Physics::Experiment 010306 general physics

description

We calculate the four-loop massless QCD corrections with three closed quark lines to quark and gluon form factors. We apply a novel integration by parts algorithm based on modular arithmetic and compute all relevant master integrals for arbitrary values of the space-time dimension. This is the first calculation of a gluon form factor at this perturbative order in QCD.

year	journal	country	edition	language
2017-02-22	Physical Review D

https://doi.org/10.1103/physrevd.95.034030

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