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- W4320830040 abstract "Supergravity theories with non-minimal Kahler potentials are characterized by a non-trivial field space manifold with corresponding non-trivial kinetic terms. The scattering amplitudes in these theories can be calculated at fixed background field values by making a field redefinition to Riemann normal coordinates. Because of the Kahler structure of supergravity, a more compact method for calculating amplitudes is obtained by a redefinition to Kahler normal coordinates. We compare both methods and calculate the explicit transformations and amplitudes for several examples in the context of no-scale supergravity with one and two chiral superfields. We show that in all cases the equivalence of the scattering amplitudes using either Riemann normal or Kahler normal coordinates is possible only at extremal points of the scalar potential." @default.
- W4320830040 created "2023-02-15" @default.
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- W4320830040 date "2023-02-10" @default.
- W4320830040 modified "2023-09-28" @default.
- W4320830040 title "Supergravity Scattering Amplitudes" @default.
- W4320830040 doi "https://doi.org/10.48550/arxiv.2302.05456" @default.
- W4320830040 hasPublicationYear "2023" @default.
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