2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177821We first briefly review tests on CPT invariance based on the consequences of the CPT theorem and then present some possible CPT tests due to exotic models in which some of the CPT conditions are lost, such as those without hermiticity.9 pages; a typo corrected, a reference addedHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext