2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46050We consider interactions of fermions with the domain wall bubbles produced during the first order phase transitions. New exact solution of Dirac equations and reflection coefficient are obtained.5 page, no macros, no figures, LaTEXHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext