2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90979On the basis of phenomenological model of the orthopositronium annihilation "isotope anomaly" in gaseous neon (lifetime spectra, positrons source Na-22) the realistic estimation of an additinal mode ~0.2%) of the orthopositronium annihilation is received.Quantum Physicstext