2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/143310Based on the fact that the scalar curvature of the internal space determines the mass of the dilaton in higher-dimensional unified theories, we show how the dilaton mass can explain the origin of mass and resolve the hierarchy problem. Moreover, we show that cosmology puts a strong constraint on dilaton mass, and requires the scale of the internal space to be larger than $10^{-9} m$.5 pages, 1 figureHigh Energy Physics - PhenomenologyGeneral Relativity and Quantum CosmologyHigh Energy Physics - TheoryHierarchy Problem, Dilatonic Fifth Force, and Origin of Masstext