Renormalization in Large Momentum Effective Theory of Parton Physics
High Energy Physics - Phenomenology
2018-03-21 v1 High Energy Physics - Lattice
Abstract
In the large-momentum effective field theory approach to parton physics, the matrix elements of non-local operators of quark and gluon fields, linked by straight Wilson lines in a spatial direction, are calculated in lattice quantum chromodynamics as a function of hadron momentum. Using the heavy-quark effective theory formalism, we show a multiplicative renormalization of these operators at all orders in perturbation theory, both in dimensional and lattice regularizations. The result provides a theoretical basis for extracting parton properties through properly renormalized observables in Monte Carlo simulations.
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Cite
@article{arxiv.1706.08962,
title = {Renormalization in Large Momentum Effective Theory of Parton Physics},
author = {Xiangdong Ji and Jian-Hui Zhang and Yong Zhao},
journal= {arXiv preprint arXiv:1706.08962},
year = {2018}
}
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5 pages