Uniqueness of MHV gravity amplitudes
Keywords:
scattering amplitudes, adjoints, commutative algebraAbstract
We investigate MHV tree-level gravity amplitudes as defined on the spinor-helicity variety. Unlike their gluon counterparts, the gravity amplitudes do not have logarithmic singularities and do not admit Amplituhedron-like construction. Importantly, they are not determined just by their singularities, but rather their numerators have interesting zeroes. We make a conjecture about the uniqueness of the numerator and explore this feature from a more mathematical perspective. This leads us to a new approach for examining adjoints. We outline steps of our proposed proof and provide computational evidence for its validity in specific cases.
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Copyright (c) 2025 J. Koefler, U. Oktem, S. Paranjape, J. Trnka, B. Zacovic

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