2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55758The general model of an arbitrary spin massive particle in any dimensional space-time is derived on the basis of Kirillov - Kostant - Souriau approach. Keywords: spinning particles, Poincaré group, orbit method, constrained dynamics, geometric quantization.13 pages, tcilatexHigh Energy Physics - Theorytext