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arXiv · 1111.0544

BCJ and KK Relations from BRST Symmetry and Supergravity Amplitudes

P. A. Grassi·A. Mezzalira·L. Sommovigo
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Abstract

We use Pure Spinor string theory to construct suitable kinematical factors which explicitly satisfy the Kleiss-Kuijf (KK) relations. Using the formula conceived by Bern et al. and employed by us for 4- and 5-point amplitudes in a previous work, we are able to compute the 6-point supergravity amplitude from the corresponding SYM building blocks given by Mafra et al.. We derive the KK and Bern-Carrasco-Johansson (BCJ) identities from the BRST invariance and we discuss the relations between Bern et al. building blocks and those of Mafra et al..

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P. A. Grassi, A. Mezzalira, L. Sommovigo. 2011-11-02. BCJ and KK Relations from BRST Symmetry and Supergravity Amplitudes. https://arxiv.org/abs/1111.0544

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