Muon Cooling Progress and Prospects for an S-channel Muon Collider Higgs Factory

TL;DR

This paper reviews recent progress in muon accelerator technology, highlighting advancements in muon cooling, detector design, and system demonstrations, which make muon colliders and neutrino sources more feasible for high-energy physics.

Contribution

It presents detailed designs and realistic simulations for 6D muon cooling achieving over five orders of magnitude emittance reduction, advancing the feasibility of muon colliders and neutrino sources.

Findings

Over five orders-of-magnitude emittance reduction in 6D muon cooling

Detector background reduction through pixelation and timing improvements

Enhanced feasibility of muon storage rings for neutrino sources and colliders

Abstract

Muon-based accelerators have the potential to enable facilities at both the Intensity and the Energy Frontiers. Muon storage rings can serve as high precision neutrino sources, and a muon collider is an ideal technology for a TeV or multi-TeV collider. Progress in muon accelerator designs has advanced steadily in recent years. In regard to 6D muon cooling, detailed and realistic designs now exist that provide more than 5 order-of-magnitude emittance reduction. Furthermore, detector performance studies indicate that with suitable pixelation and timing resolution, backgrounds in the collider detectors can be significantly reduced thus enabling high quality physics results. Thanks to these and other advances in design and simulation of muon systems, technology development, and systems demonstrations, muon storage-ring-based neutrino sources and a muon collider appear more feasible than ever before. A muon collider is now arguably among the most compelling approaches to a multi-TeV lepton collider and an S-Channel Higgs Channel.