2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196889One might raise a question if the gravitational scalar field (dilaton) mediates a finite-range force between local objects still behaving globally as being massless to implement the scenario of a decaying cosmological constant. We offer a non-negative reply by a detailed analysis of the field-theoretical quantization procedure in relation to the observationally required suppression of the vacuum-energy.9 pages LaTeX 1 figure; an added reference and partial revisionsGeneral Relativity and Quantum Cosmologytext