Two-current correlations in the pion on the lattice
High Energy Physics - Lattice
2019-01-30 v2
Abstract
We perform a systematic study of the correlation functions of two quark currents in a pion using lattice QCD. We obtain good signals for all but one of the relevant Wick contractions of quark fields. We investigate the quark mass dependence of our results and test the importance of correlations between the quark and the antiquark in the pion. Our lattice data are compared with predictions from chiral perturbation theory.
Cite
@article{arxiv.1807.03073,
title = {Two-current correlations in the pion on the lattice},
author = {Gunnar S. Bali and Peter Bruns and Luca Castagnini and Markus Diehl and Jonathan R. Gaunt and Benjamin Glassle and Andreas Schafer and Andre Sternbeck and Christian Zimmermann},
journal= {arXiv preprint arXiv:1807.03073},
year = {2019}
}
Comments
49 pages, 24 figures. v2: clarifications in text, added section on root mean square radii