2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50907In this paper, we establish basic material for future investigations of the analysis and geometry of the twistor bundle, and of differential operators with the twistor bundle as source and/or target, especially the Rarita-Schwinger operator, a first order differential operator taking twistors to twistors.46 pages, LaTeXHigh Energy Physics - Theorytext