2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/96255We show that in the framework of the classical general relativity the presence of a positive cosmological constant implies the existence of a minimal mass and of a minimal density in nature. These results rigorously follow from the generalized Buchdahl inequality in the presence of a cosmological constant.8 pages, no figures, accepted for publication in PLBGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - Theorytext