2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48130If there exist fields of mass of the order of $10^{13}$ GeV and large field inflation occurs, their interaction with classical gravitation will generate enough particles to give the universe critical density today regardless of their nongravitational coupling. This is mainly a summary of the work hep-ph/9802238.Talk presented at PASCOS-98, Boston, MA, March 1998. 4 page LaTeX file with 1 PS figure included with psfigHigh Energy Physics - Phenomenologytext