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arXiv · 2203.00696

UV-Complete Gravity Amplitudes and the Triple Product

Yu-tin Huang·Grant N. Remmen
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Abstract

We construct an infinite class of new ultraviolet-complete four-graviton scattering amplitudes that reduce to Einstein gravity at low energies, vanish at high energies, are meromorphic, and exhibit a triple-product structure ${\cal A}(s){\cal A}(t){\cal A}(u)$. The spectrum invariantly exhibits accumulation points in the form of infinite towers of states on each mass pole, whose residue can be positively expanded on tree-level exchanges of irreducible representations of the Lorentz group.

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Yu-tin Huang, Grant N. Remmen. 2022-03-01. UV-Complete Gravity Amplitudes and the Triple Product. https://doi.org/10.1103/physrevd.106.l021902

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