# Double Soft Limit of Graviton Amplitude from the Cachazo-He-Yuan Formalism

## TL;DR

This paper analyzes the double soft limit of graviton scattering amplitudes using the CHY formalism, confirming previous results and revealing detailed relations between solutions of scattering equations.

## Contribution

It provides a complete analysis of the double soft graviton limit within the CHY formalism, establishing new relations between solution types and soft factors.

## Key findings

- Results agree with BCFW recursion relations
- Identifies relations between degenerate and nondegenerate solutions
- Clarifies local and nonlocal terms in the soft factor

## Abstract

We present a complete analysis for double soft limit of graviton scattering amplitude using the formalism proposed by Cachazo, He and Yuan. Our results agree with that obtained via BCFW recursion relations in arXiv:1504.05558. In addition we find precise relations between degenerate and nondegenerate solutions of scattering equations with local and nonlocal terms in the soft factor.