Low-energy muons via frictional cooling

TL;DR

This paper explores a frictional cooling method to produce low-energy muon beams with small energy spreads, significantly improving efficiency over current methods, which benefits various physics experiments.

Contribution

It introduces a frictional cooling approach for low-energy muon production, achieving higher efficiency than existing schemes.

Findings

Potential to increase low-energy muon production efficiency to 1%

Simulations demonstrate improved energy spread control

Applicable to surface muon sources like at PSI

Abstract

Low-energy muon beams are useful for a range of physics experiments. We consider the production of low-energy muon beams with small energy spreads using frictional cooling. As the input beam, we take a surface muon source such as that at the Paul Scherrer Institute. Simulations show that the efficiency of low energy muon production can potentially be raised to 1%, which is significantly higher than that of current schemes.