# The Memory Effect for Particle Scattering in Even Spacetime Dimensions

## TL;DR

This paper calculates the gravitational wave memory effect for point particles in even-dimensional Minkowski spacetime and finds it exists only in four dimensions, aligning with previous theoretical predictions.

## Contribution

It provides explicit calculations of the memory effect in various even dimensions, confirming the absence of memory in dimensions higher than four.

## Key findings

- Memory effect exists in 4D spacetime.
- No memory effect in dimensions greater than 4.
- Results agree with previous theoretical analyses.

## Abstract

We explicitly calculate the gravitational wave memory effect for classical point particle sources in linearized gravity off of an even dimensional Minkowski background. We show that there is no memory effect in $d>4$ dimensions, in agreement with the general analysis of Hollands, Ishibashi, and Wald (2016).