2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50853We clarify a mechanism to obtain a massless gauge boson from the Kaluza-Klein approach of the Randall-Sundrum(RS) brane world. This corresponds exactly to the same mechanism of achieving a localization of the gauge boson by adding both the bulk and brane mass terms. Accordingly this work puts another example for a localization-mechanism of the gauge boson on the brane.7 pages, typo corrected and comments addedHigh Energy Physics - Theorytext