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All-order Feynman rules for leading-twist gauge-invariant operators in QCD
- Source :
- Eur.Phys.J.C 84 (2024) 7, 740
- Publication Year :
- 2024
-
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.<br />Comment: 22 pages, LaTex, 9 figures, v2: major revision: conventions for quark operator rules changed and Feynman rules for gluon operators were added
- Subjects :
- High Energy Physics - Phenomenology
High Energy Physics - Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Eur.Phys.J.C 84 (2024) 7, 740
- Publication Type :
- Report
- Accession number :
- edsarx.2403.12623
- Document Type :
- Working Paper