2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204556In braneworld models coming from string theory one generally encounters massless scalar degrees of freedom -moduli- parameterizing the volume of small compact extra-dimensions. Here we discuss the effects of such moduli on Newton's law for a fairly general 5-D supersymmetric braneworld scenario with a bulk scalar field $ϕ$. We show that the Newtonian potential describing the gravitational interaction between two bodies localized on the visible brane picks up a non-trivial contribution at short distances that depends on the shape of the superpotential $W(ϕ)$ of the theory. In particular, we compute this contribution for dilatonic braneworld scenarios $W(ϕ) = e^{αϕ}$ (where $α$ is a constant) and discuss the particular case of 5-D Heterotic M-theory.Contribution to the Proceedings of the 13th International Symposium on Particles, Strings and Cosmology, PASCOS-07High Energy Physics - PhenomenologyGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext