Pure Spinor Superspace Identities for Massless Four - point Kinematic Factors
نویسنده
چکیده
Using the pure spinor formalism we prove identities which relate the tree-level, oneloop and two-loop kinematic factors for massless four-point amplitudes. From these identities it follows that the complete supersymmetric oneand 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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تاریخ انتشار 2008