Two-current correlations in the pion on the lattice

Bali, Gunnar S. and Bruns, Peter C. and Castagnini, Luca and Diehl, Markus and Gaunt, Jonathan R. and Glaessle, Benjamin and Schaefer, Andreas and Sternbeck, Andre and Zimmermann, Christian (2018) Two-current correlations in the pion on the lattice. JOURNAL OF HIGH ENERGY PHYSICS (12): 061. ISSN 1029-8479,

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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.

Item Type: Article
Uncontrolled Keywords: CHARGE-DISTRIBUTIONS; QCD; RENORMALIZATION; IMPROVEMENT; Lattice QCD; Chiral Lagrangians
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali
Depositing User: Dr. Gernot Deinzer
Date Deposited: 04 Oct 2019 06:44
Last Modified: 04 Oct 2019 06:44
URI: https://pred.uni-regensburg.de/id/eprint/13359

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