2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149218It is shown that, by defining a suitable energy momentum tensor, the field equations of general relativity admit a line element of Yukawa potential as an exact solution. It is also shown that matter that produces strong force may be negative, in which case there would be no Schwarzschild-like singularityLatex 4 pages (some changes in notation, and a discussion on a repulsive term that may be related to the charge of a particle)High Energy Physics - TheoryGeneral Relativity and Quantum CosmologyNuclear Theorytext