2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41308In this talk, the status of CPT tests with neutral mesons is reviewed in the context of quantum field theory and the Lorentz- and CPT-violating standard-model extension.10 pages, presented at the Second Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, August 2001High Energy Physics - Phenomenologytext