2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/181698It is argued that the realization of gauge invariance condition as a consequent of cancellation between the ϕ\toγf0\toγ\pi0\pi0 resonance contribution and a ϕ\toγ\pi0\pi0 background one, suggested in Ref. [1], is misleading.4 pages, one reference addedHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentNuclear Theorytext