2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186079We investigate the role of lifetime effects from resonances and emission duration tails in femtoscopy at RHIC in two Blast-Wave models. We find the non-Gaussian components compare well with published source imaged data, but the value of R_out obtained from Gaussian fits is not insensitive to the non-Gaussian contributions when realistic acceptance cuts are applied to models.5 pages, 2 figuresNuclear Theorytext