PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Spectral sum from Euclidean lattice correlators and determination of renormalization constants
T. Ishikawa*, S. Hashimoto and T. Kaneko
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Pre-published on: May 16, 2022
Published on:
Abstract
We propose a new method to renormalize lattice operators.
The method is based on the technique to compute the spectral sum appearing in the Shifman-Vainshtein-Zakharov QCD sum rule from lattice correlators.
The application of this technique to the light quark system is useful for operator renormalization as well as for the test of perturbative QCD and OPE.
We determine the renormalization constant of the vector current and discuss extensions to other current operators.
DOI: https://doi.org/10.22323/1.396.0581
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