More on the Subleading Gravitational Waveform

TL;DR

This paper calculates a specific contribution to the one-loop gravitational waveform, focusing on the difference of unitarity cuts in different channels, providing explicit expressions for minimally-coupled massive scalars.

Contribution

It offers an explicit expression for the difference in unitarity cuts in the one-loop gravitational waveform calculation for minimally-coupled massive scalars.

Findings

Derived explicit expression for the unitarity cut difference.

Clarified the contribution to the gravitational waveform from specific channels.

Enhanced understanding of one-loop gravitational waveform calculations.

Abstract

In this short note, we address the calculation of the contribution to the one-loop gravitational waveform arising from the difference of the unitarity cuts associated to the $s$- and $s'$-channels recently pointed out in arXiv:2308.02125, providing its explicit expression for minimally-coupled massive scalars in momentum space.