# Testing Gravity with Muonium

Source: [Testing Gravity with Muonium](<https://www.sota2.com/research/paper/68fa20bf7a2b558e293330b3>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-23T22:57:29.768Z

Authors: K. Kirch

Published: 2007-02-16T18:12:29.000Z

## Abstract

Recently a new technique for the production of muon ($\\mu^+$) and muonium ($\\mu^+e^-$) beams of unprecedented brightness has been proposed. As one consequence and using a highly stable Mach-Zehnder type interferometer, a measurement of the gravitational acceleration $\\bar{g}$ of muonium atoms at the few percent level of precision appears feasible within 100 days of running time. The inertial mass of muonium is dominated by the mass of the positively charged - antimatter - muon. The measurement of $\\bar{g}$ would be the first test of the gravitational interaction of antimatter, of a purely leptonic system, and of particles of the second generation.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/physics/0702143>)

[PDF](<https://arxiv.org/pdf/physics/0702143.pdf>)