2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190498Brane inflation can provide a promissing framework for solving the fine-tuning problem in standard inflationary models. The aim of this paper is to illustrate the mechanism by which this can be achieved. By considering the supersymmetric two-stage inflation model it is shown that the initial fine-tuning of the coupling parameter can be considerably relaxed. SubPlanckian values of the inflaton during inflation can also be obtained.04 pages (Revtex)High Energy Physics - Phenomenologytext