Muon Collider Forum Report

TL;DR

This report discusses the potential of multi-TeV muon colliders for advancing high-energy physics through precision measurements and unprecedented energy reach, highlighting ongoing community efforts and technological developments.

Contribution

It summarizes the activities, discussions, and findings of the Muon Collider Forum, emphasizing the collider's scientific potential and the community's progress in R&D.

Findings

Strong community interest and support for muon collider development

Organized workshops on physics, technology, and detector R&D

Summarized progress and challenges in muon collider research

Abstract

A multi-TeV muon collider offers a spectacular opportunity in the direct exploration of the energy frontier. Offering a combination of unprecedented energy collisions in a comparatively clean leptonic environment, a high energy muon collider has the unique potential to provide both precision measurements and the highest energy reach in one machine that cannot be paralleled by any currently available technology. The topic generated a lot of excitement in Snowmass meetings and continues to attract a large number of supporters, including many from the early career community. In light of this very strong interest within the US particle physics community, Snowmass Energy, Theory and Accelerator Frontiers created a cross-frontier Muon Collider Forum in November of 2020. The Forum has been meeting on a monthly basis and organized several topical workshops dedicated to physics, accelerator technology, and detector R&D. Findings of the Forum are summarized in this report.