2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198444We study a double inflation model (a hybrid inflation + a new inflation) in supergravity and discuss the formation of primordial black holes (PBHs) with mass \sim 10^{-20}-10^{5}M_{\odot}. We find that in a wide range of parameter space, we obtain PBHs which amount to Ω\simeq 1, i.e., PBH dark matter. Also, we find a set of inflation parameters which produces PBHs evaporating now. Those PBHs may be responsible for antiproton fluxes observed by the BESS experiment.14 pages, 2 figures (RevTeX file)High Energy Physics - PhenomenologyAstrophysicsGeneral Relativity and Quantum Cosmologytext