Complete construction of magical, symmetric and homogeneous N=2 supergravities 
as double copies of gauge theories

Chiodarolia, Marco; Gunaydin, Murat; Johansson, Henrik; Roiban, Radu

doi:10.1103/PhysRevLett.117.011603

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Complete construction of magical, symmetric and homogeneous N=2 supergravities as double copies of gauge theories

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Chiodarolia, Marco
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Chiodarolia, M., Gunaydin, M., Johansson, H., & Roiban, R. (2016). Complete construction of magical, symmetric and homogeneous N=2 supergravities as double copies of gauge theories. Physical Review Letters, 117: 011603. doi:10.1103/PhysRevLett.117.011603.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-7180-A

Abstract

We show that scattering amplitudes in magical, symmetric or homogeneous N=2 Maxwell-Einstein supergravities can be obtained as double copies of two gauge theories, using the framework of color/kinematics duality. The left-hand-copy is N=2 super-Yang-Mills theory coupled to a hypermultiplet, whereas the right-hand-copy is a non-supersymmetric theory that can be identified as the dimensional reduction of a D-dimensional Yang-Mills theory coupled to P fermions. For generic D and P, the double copy gives homogeneous supergravities. For P=1 and D=7,8,10,14, it gives the magical supergravities. We compute explicit amplitudes, discuss their soft limit and study the UV-behavior at one loop.