2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/175508We discuss orientifold projections on superspace effective actions for hypermultiplets. We present a simple and new mechanism that allows one to find the Kahler potential and complex structure for the N=1 theory directly in terms of the parent N=2 theory. As an application, we demonstrate our method for Calabi-Yau orientifold compactifications of type IIB superstrings.7 pagesHigh Energy Physics - Theorytext