Publication
Title
Piecewise linear Wilson lines
Author
Abstract
Wilson lines, being comparators that render non-local operator products gauge invariant, are extensively used in QCD calculations, especially in small-x calculations, calculations concerning validation of factorisation schemes and in calculations for constructing or modelling parton density functions. We develop an algorithm to express piecewise path ordered exponentials as path ordered integrals over the separate segments, and apply it on linear segments, reducing the number of diagrams needed to be calculated. We show how different linear path topologies can be related using their colour structure. This framework allows one to easily switch results between different Wilson line structures, which is especially useful when testing different structures against each other, e. g. when checking universality properties of non-perturbative objects.
Language
English
Source (journal)
EPJ Web of Conferences
PROCESSES (TRANSVERSITY 2014)
Source (book)
4th International Workshop on Transverse Polarisation Phenomena in Hard, Processes (TRANSVERSITY), JUN 09-13, 2014, Cagliari, ITALY
Publication
Cedex a : E d p sciences, 2015
ISSN
2100-014X
Volume/pages
85(2015), 6 p.
Article Reference
02004
ISI
000351841100013
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 12.05.2015
Last edited 10.11.2017
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