Artigo
Relating the RNS and pure spinor formalisms for the superstring
Fecha
2001-12-01Registro en:
Journal of High Energy Physics. New York: Springer, n. 8, 26 p., 2001.
1029-8479
10.1088/1126-6708/2001/08/026
WOS:000174170100026
2-s2.0-33745023393
Autor
Universidade Estadual Paulista (Unesp)
Resumen
Recently, the superstring was covariantly quantized using the BRST-like operator Q = ∮ λαdα where λα is a pure spinor and dα are the fermionic Green-Schwarz constraints. By performing a field redefinition and a similarity transformation, this BRST-like operator is mapped to the sum of the Ramond-Neveu-Schwarz BRST operator and η0 ghost. This map is then used to relate physical vertex operators and tree amplitudes in the two formalisms. Furthermore, the map implies the existence of a b ghost in the pure spinor formalism which might be useful for loop amplitude computations.