2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112469We suggest a very simple but general operator to break mass degeneration between representations of the Poincare group having spin 1 and 1/2. A quantity very similar, at experimental 0.13 $σ$ level, to Weinberg's angle, appears during the process.6 pagesHigh Energy Physics - Phenomenologytext