2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189747We study a class of intersecting D-brane models in which fermions localized at different intersections interact via exchange of bulk fields. In some cases these interactions lead to dynamical symmetry breaking and generate a mass for the fermions. We analyze the conditions under which this happens as one varies the dimensions of the branes and of the intersections.29 pages, harvmac (b)High Energy Physics - Theorytext