Graviton Amplitudes from Collinear Limits of Gauge Amplitudes

TL;DR

This paper demonstrates that all tree-level graviton amplitudes in Einstein's gravity can be derived from collinear limits of specific combinations of pure Yang-Mills amplitudes, representing gravitons as pairs of gauge bosons.

Contribution

It introduces a novel approach to express graviton amplitudes as collinear limits of gauge theory amplitudes, linking gravity and gauge theories in a new way.

Findings

All tree-level graviton amplitudes can be obtained from Yang-Mills amplitudes.

Gravitons are represented by pairs of gauge bosons with half the momentum and helicity.

The approach simplifies calculations of gravitational scattering amplitudes.

Abstract

We express all tree-level graviton amplitudes in Einstein's gravity as the collinear limits of a linear combination of pure Yang-Mills amplitudes in which each graviton is represented by two gauge bosons, each of them carrying exactly one half of graviton's momentum and helicity.