Pure spinor superspace identities for massless four-point kinematic factors
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Data
2008-04-01
Autores
Mafra, Carlos R. [UNESP]
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Editor
Int School Advanced Studies
Resumo
Using the pure spinor formalism we prove identities which relate the tree-level, one-loop and two-loop kinematic factors for massless four-point amplitudes. From these identities it follows that the complete supersymmetric one- and two-loop amplitudes are immediately known once the tree-level kinematic factor is evaluated. In particular, the two-loop equivalence with the RNS formalism (up to an overall coefficient) is obtained as a corollary.
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Palavras-chave
superstrings and heterotic strings, superspaces
Como citar
Journal of High Energy Physics. Trieste: Int School Advanced Studies, n. 4, p. 11, 2008.