2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192553The $Δ$ decay in the nuclear medium is calculated in the relativistic meson-nucleon model. The delta spreading width is calculated and compared with the Pauli-blocked $π$N decay width. The influence of relativistic mean fields is also studied. We stress the importance of understanding the delta spreading width in interpreting experiments involving delta resonances.13 pages (including figures), revtexNuclear Theorytext