2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38480String breaking is a non-perturbative long-distance feature of QCD that is involved in for example meson decays. A mixing analysis of lattice operators at zero temperature gives the level splitting and mixing energy between the broken and unbroken string states.4 pages, 1 eps figure. Talk given at Confinement 2000 in Osaka, JapanHigh Energy Physics - Latticetext