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- W4308672515 abstract "Key to the simplicity of supergravity alpha-attractor models of inflation are Volkov-Akulov fermions, often in the form of nilpotent superfields. Here we explore the possibility of using the double-copy to construct theories of Dirac-Born-Infeld-Volkov-Akulov (DBIVA) coupled to supergravity. A color-dual bootstrap admits scattering amplitudes involving pions and vectors through five-point tree-level order by order in mass-dimension, but requires the introduction of a tr(F^3) operator. Gauge theories with this operator were recently found to require a tower of higher-derivative operators to be compatible with the duality between color and kinematics. Adjoint-type double-copy construction at its most conservative seems to require the UV completion of DBVIA + pure Poincare supergravity scattering amplitudes to a family of theories involving DBVIA-like particles coupled to Weyl-Einstein supergravity. We also point out an alternative solution to color-dual gauged pions that allows adjoint double-copy without a tower of higher derivative corrections but at the cost of exchange symmetry between scalars." @default.
- W4308672515 created "2022-11-14" @default.
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- W4308672515 date "2022-11-08" @default.
- W4308672515 modified "2023-09-27" @default.
- W4308672515 title "Double-copy towards supergravity inflation with $alpha$-attractor models" @default.
- W4308672515 doi "https://doi.org/10.48550/arxiv.2211.04441" @default.
- W4308672515 hasPublicationYear "2022" @default.
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