| Article | |
| Report number | arXiv:1807.03073 ; DESY 18-105 ; CERN-TH-2018-147 ; DESY-18-105 |
| Title | Two-current correlations in the pion on the lattice |
| Author(s) | Bali, Gunnar S. (Regensburg U. ; TIFR, Mumbai, Dept. Theor. Phys.) ; Bruns, Peter C. (Rez, Nucl. Phys. Inst.) ; Castagnini, Luca (Regensburg U.) ; Diehl, Markus (Hamburg U. ; DESY) ; Gaunt, Jonathan R. (CERN) ; Gläßle, Benjamin (Tubingen U.) ; Schäfer, Andreas (Regensburg U.) ; Sternbeck, André (Jena U.) ; Zimmermann, Christian (Regensburg U.) |
| Publication | 2018-12-11 |
| Imprint | 2018-07-09 |
| Number of pages | 49 |
| Note | Submitted to JHEP 49 pages, 24 figures. v2: clarifications in text, added section on root mean square radii |
| In: | JHEP 12 (2018) 061 |
| DOI | 10.1007/JHEP12(2018)061 |
| Subject category | hep-lat ; Particle Physics - Lattice |
| 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. |
| Copyright/License | publication: (License: CC-BY-4.0) preprint: (License: CC-BY-4.0) |
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Záznam vytvorený 2018-07-11, zmenený 2023-11-26