2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/226162We introduce a new approach to absolute continuity of laws of Poisson functionals. It is based on the {\it energy image density} property for Dirichlet forms and on what we call {\it the lent particle method} which consists in adding a particle and taking it back after some calculation.29pProbabilityFunctional Analysis60G57, 60H05, 60J45, 60G51text