Factorization of Twist-Four Gluon Operator Contributions

1999/08/19 by Jochen Bartels, Claas Bontus, Bartels, Jochen +4 · 1 citation
Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #advanced mathematical theories #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9908411

26 pages, 4 figures, 1 table, 9 footnotes, LaTeX, AMSMath, requires bm.sty

arxiv created 1999/08/19 · openalex publication_date 1999/08/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider diagrams with up to four t-channel gluons in order to specify gluonic twist-four contributions to deep inelastic structure functions. This enables us to extend the method developed by R.K.Ellis, W.Furmanski, and R.Petronzio (EFP) to the gluonic case. The method is based on low-order Feynman diagrams in combination with a dimensional analysis. It results in explicitly gauge invariant expressions for the factorization of twist-four gluon-operator matrix elements and the corresponding coefficient functions.

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