Chandia, OsvaldoVallilo, Brenno Carlini2023-06-202023-06-202022-11European Physical Journal C, Volume 82, Issue 11, November 2022, Article number 9911434-6044https://repositorio.unab.cl/xmlui/handle/ria/50835Indexación: Scopus.We study supersymmetry conditions for the heterotic pure superstring preserving N= 1 supersymmetry in four dimensions directly from the curved superspace defined by the Berkovits–Howe constraints. © 2022, The Author(s).enSpinorTwistorsFormalismArtículoAttribution 4.0 International (CC BY 4.0)10.1140/epjc/s10052-022-10947-0