BCJ and KK Relations from BRST Symmetry and Supergravity Amplitudes

Details BCJ and KK Relations from BRST Symmetry and Supergravity Amplitudes BCJ and KK Relations from BRST Symmetry and Supergravity Amplitudes

2011-11-02

arxiv.org/abs/1111.0544v1

Physics

High Energy Physics

High Energy Physics - Theory

Harvmac, 15pp

Scientific paper

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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