Uniqueness of MHV gravity amplitudes

Authors

  • J. Koefler MPI for Mathematics Leipzig, Germany
  • U. Oktem University of California Davis, United States
  • S. Paranjape Brown University, United States
  • J. Trnka University of California Davis, United States
  • B. Zacovic University of Michigan, United States

Keywords:

scattering amplitudes, adjoints, commutative algebra

Abstract

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.

Downloads

Published

2025-05-23

Issue

Section

Articoli