Chandia, O.2021-07-062021-07-062006-07Journal of High Energy Physics, Volume 2006, Issue 71, July 2006, Article number 0191029-8479http://repositorio.unab.cl/xmlui/handle/ria/19289Indexación: Scopus.The classical pure spinor version of the heterotic superstring in a supergravity and super Yang-Mills background is considered. We obtain the BRST transformations of the world-sheet fields. They are consistent with the constraints obtained from the nilpotence of the BSRT charge and the holomorphicity of the BRST current.enConformal Field Models in String TheorySuperstrings and Heterotic StringsSpinorTwistorsSuperstringA note on the classical BRST symmetry of the pure spinor string in a curved backgroundArtÃculoDOI: 10.1088/1126-6708/2006/07/019