Low emittance muon accelerator studies with production from positrons on target

TL;DR

This paper proposes a novel method for producing low emittance muon beams via 45 GeV positron interactions with a target, involving innovative ring and target design simulations for potential use in multi-TeV colliders.

Contribution

It introduces a new scheme utilizing positron-electron interactions in a low emittance ring with a thin target, including detailed simulation and optimization of the system.

Findings

Simulation results show effective muon production with optimized ring design.

The scheme achieves high energy acceptance for muon beam collection.

Potential application in future multi-TeV muon colliders.

Abstract

A new scheme to produce very low emittance muon beams using a positron beam of about 45~GeV interacting on electrons on target is presented. One of the innovative topics to be investigated is the behaviour of the positron beam stored in a low emittance ring with a thin target, that is directly inserted in the ring chamber to produce muons. Muons can be immediately collected at the exit of the target and transported to two $\mu^+$ and $\mu^-$ accumulator rings and then accelerated and injected in muon collider rings. We focus in this paper on the simulation of the e$^+$ beam interacting with the target, the effect of the target on the 6-D phase space and the optimization of the e$^+$ ring design to maximize the energy acceptance. We will investigate the performance of this scheme, ring plus target system, comparing different multi-turn simulations. The source is considered for use in a multi-TeV collider in ref.[1]