KLT and New Relations for N=8 SUGRA and N=4 SYM

Feng, Bo; He, Song

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KLT and New Relations for N=8 SUGRA and N=4 SYM

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He, Song
Canonical and Covariant Dynamics of Quantum Gravity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1007.0055
(Preprint), 128KB

JHEP2010_043.pdf
(Any fulltext), 283KB

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Citation

Feng, B., & He, S. (2010). KLT and New Relations for N=8 SUGRA and N=4 SYM. Journal of High Energy Physics, 2010(9): 43. Retrieved from http://arxiv.org/abs/1007.0055.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-C65E-7

Abstract

In this short note, we prove the supersymmetric Kawai-Lewellen-Tye (KLT) relations between N=8 supergravity (SUGRA) and N=4 super Yang-Mills (SYM) tree-level amplitudes in the frame of S-matrix program, especially we do not use string theory or the explicit Lagrangian form of corresponding theories. Our supersymmetric KLT relations naturally unify the non-supersymmetric KLT relations and newly discovered gauge theory identities and produce more identities for amplitudes involving scalars and fermions. We point out also that these newly discovered identities can be used to reduce helicity basis from (n-3)! further down.