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Supergravity amplitudes, the double copy and ultraviolet behavior

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arxiv 2304.07392 v1 pith:X5G6NI4Z submitted 2023-04-14 hep-th

Zvi Bern , John Joseph M. Carrasco , Marco Chiodaroli , Henrik Johansson , Radu Roiban This is my paper · ORCID
classification hep-th
keywords ultravioletsupergravitycalculationstheoriescopydoublepropertiesamplitudes
verification ladder T0 review T1 audit T2 compute T3 formal
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In this chapter, we present a scattering-amplitudes perspective on supergravity, and describe its application to the study of ultraviolet properties of supergravity theories at high loop orders. The basic on-shell tools that make such calculations feasible are reviewed, including generalized unitarity, color-kinematics duality, and the double-copy construction. We also outline the web of theories connected by the double copy. The results of various calculations of potential ultraviolet divergences are summarized. These include puzzling enhanced ultraviolet cancellations, for which no symmetry-based understanding currently exists, showing that there is much more to learn about the ultraviolet properties of supergravity theories. We finally comment on future calculations that should help resolve the puzzles.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Supersymmetry, Supergravity and the Consistency of On-Shell Massive Superamplitudes

    hep-th 2026-08 conditional novelty 7.0 of 10

    Consistent scattering amplitudes force a massless spin-3/2 particle to be the gravitino of a supergravity theory, and constrain massive BPS vector couplings to form a Lie algebra.

  2. Gleaning gravitational amplitudes -- a double copy for canceling dilatons

    hep-th 2025-01 conditional novelty 7.0 of 10

    An asymmetric double copy with a ghost-like sqrt-dilaton cancels dilaton contaminations in tree-level GR amplitudes with massive scalars up to six points, leaving a residual bubble ambiguity at one loop.

  3. The Many Colours of Amplitudes

    hep-th 2024-12 accept novelty 6.0 of 10

    The authors compute exact numbers of independent colour tensors for all simple Lie algebras and survey their factorial, exponential, and special-group behaviour.

  4. One-Loop Observables to Higher Order in Spin

    hep-th 2024-12 conditional novelty 6.0 of 10

    New one-loop formulas express the momentum impulse and spin kick of two scattered spinning bodies directly in terms of the eikonal phase, valid to all orders in spin and independent of the spin supplementary condition.

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