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All-order Feynman rules for leading-twist gauge-invariant operators in QCD

Somogyi, Gábor and Van Thurenhout, Sam (2024) All-order Feynman rules for leading-twist gauge-invariant operators in QCD. EUROPEAN PHYSICAL JOURNAL C, 84. No.-740. ISSN 1434-6044

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Abstract

We present the Feynman rules for leading-twist gauge-invariant quark and gluon operators with an arbitrary number of total derivatives and applicable to any order in perturbation theory. This generalizes previous results and constitutes a necessary ingredient in the computation of the matrix elements of the corresponding operators. The results are written in a form appropriate for implementation in a computer algebra system. To illustrate the latter we provide implementations in Mathematica and FORM , which are made available at https://github.com/vtsam/NKLO.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika > QC05 Physical nature of matter / részecskefizika
Depositing User: Dr. Gábor Somogyi
Date Deposited: 27 Sep 2024 07:35
Last Modified: 27 Sep 2024 07:35
URI: https://real.mtak.hu/id/eprint/206125

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