2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177429We present the results of the observations performed in the occasion of the June 21, 2001 total solar eclipse, looking for visible photons emitted trough a possible radiative decay of solar neutrinos. We establish lower limits for the neutrino proper lifetimes larger than 1000 s/eV, for neutrino masses larger than 0.01 eV.18 pages, 11 figures, accepted by Astopart. Phys, updated referencesHigh Energy Physics - ExperimentSearch for possible neutrino radiative decays during the 2001 total solar eclipsetext