Interim report for the International Muon Collider Collaboration (IMCC)

TL;DR

This report summarizes the progress and plans of the International Muon Collider Collaboration (IMCC), highlighting recent support, studies, and international collaborations aimed at developing a future muon collider.

Contribution

It provides an overview of the IMCC's activities, recent support from the European Commission, and the integration of U.S. and European efforts in muon collider research.

Findings

European support for MuCol design study initiated in 2023

Detailed studies conducted during the 2021-22 Snowmass process

International collaboration recommended by U.S. P5 panel

Abstract

The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. The Muon Collider Study (MuC) covers the accelerator complex, detectors and physics for a future muon collider. In 2023, European Commission support was obtained for a design study of a muon collider (MuCol) [3]. This project started on 1st March 2023, with work-packages aligned with the overall muon collider studies. In preparation of and during the 2021-22 U.S. Snowmass process, the muon collider project parameters, technical studies and physics performance studies were performed and presented in great detail. Recently, the P5 panel [4] in the U.S. recommended a muon collider R&D, proposed to join the IMCC and envisages that the U.S. should prepare to host a muon collider, calling this their "muon shot". In the past, the U.S. Muon Accelerator Programme (MAP) [5] has been instrumental in studies of concepts and technologies for a muon collider.