2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34209In the article {\it Gen. Rel. Grav.} {\bf 32}, 1633 (2000), by J. G. Pereira and C. M. Zhang, the special relativity energy-momentum tensor was used to discuss the neutrino phase-splitting in a weak gravitational field. However, it would be more appropriate to use the general relativity energy-momentum tensor. When we do that, as we are going to see, some results change, but the basic conclusion remains the same.2 pagesGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - PhenomenologyADDENDUM on the mass neutrino oscillation in a gravitational fieldtext