Affiliation:
1. Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
Abstract
Wilson lines are key objects in many QCD calculations. They are parallel transporters of the gauge field that can be used to render non-local operator products gauge invariant, which is especially useful for calculations concerning validation of factorization schemes and in calculations for constructing or modelling parton density functions. We develop an algorithm to express Wilson lines that are defined on piecewise linear paths in function of their Wilson segments, reducing the number of diagrams needed to be calculated. We show how different linear path topologies can be related using their color structure. This framework allows one to easily switch results between different Wilson line structures, which is helpful when testing different structures against each other, e.g. when checking universality properties of non-perturbative objects.
Publisher
World Scientific Pub Co Pte Lt
Cited by
3 articles.
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1. Identifying the Universal Part of TMDs;Light Cone 2015;2017
2. Identifying the Universal Part of TMDs;Few-Body Systems;2016-04-08
3. Working with Wilson Lines;International Journal of Modern Physics: Conference Series;2016-01