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MuCol Milestone Report No. 7: Consolidated Parameters
Authors:
Rebecca Taylor,
Antoine Chancé,
Dario Augusto Giove,
Natalia Milas,
Roberto Losito,
Donatella Lucchesi,
Chris Rogers,
Lucio Rossi,
Daniel Schulte,
Carlotta Accettura,
Simon Adrian,
Rohit Agarwal,
Claudia Ahdida,
Chiara Aime,
Avni Aksoy,
Gian Luigi Alberghi,
Simon Albright,
Siobhan Alden,
Luca Alfonso,
Muhammad Ali,
Anna Rita Altamura,
Nicola Amapane,
Kathleen Amm,
David Amorim,
Paolo Andreetto
, et al. (437 additional authors not shown)
Abstract:
This document is comprised of a collection of consolidated parameters for the key parts of the muon collider. These consolidated parameters follow on from the October 2024 Preliminary Parameters Report. Attention has been given to a high-level consistent set of baseline parameters throughout all systems of the complex, following a 10 TeV center-of-mass design. Additional details of the designs con…
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This document is comprised of a collection of consolidated parameters for the key parts of the muon collider. These consolidated parameters follow on from the October 2024 Preliminary Parameters Report. Attention has been given to a high-level consistent set of baseline parameters throughout all systems of the complex, following a 10 TeV center-of-mass design. Additional details of the designs contributing to this baseline design are featured in the appendix. Likewise, explorative variations from this baseline set can be found in the appendix. The data is collected from a collaborative spreadsheet and transferred to overleaf.
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Submitted 31 October, 2025;
originally announced October 2025.
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The Muon Collider
Authors:
Carlotta Accettura,
Simon Adrian,
Rohit Agarwal,
Claudia Ahdida,
Chiara Aime',
Avni Aksoy,
Gian Luigi Alberghi,
Siobhan Alden,
Luca Alfonso,
Muhammad Ali,
Anna Rita Altamura,
Nicola Amapane,
Kathleen Amm,
David Amorim,
Paolo Andreetto,
Fabio Anulli,
Ludovica Aperio Bella,
Rob Appleby,
Artur Apresyan,
Pouya Asadi,
Mohammed Attia Mahmoud,
Bernhard Auchmann,
John Back,
Anthony Badea,
Kyu Jung Bae
, et al. (433 additional authors not shown)
Abstract:
Muons offer a unique opportunity to build a compact high-energy electroweak collider at the 10 TeV scale. A Muon Collider enables direct access to the underlying simplicity of the Standard Model and unparalleled reach beyond it. It will be a paradigm-shifting tool for particle physics representing the first collider to combine the high-energy reach of a proton collider and the high precision of an…
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Muons offer a unique opportunity to build a compact high-energy electroweak collider at the 10 TeV scale. A Muon Collider enables direct access to the underlying simplicity of the Standard Model and unparalleled reach beyond it. It will be a paradigm-shifting tool for particle physics representing the first collider to combine the high-energy reach of a proton collider and the high precision of an electron-positron collider, yielding a physics potential significantly greater than the sum of its individual parts. A high-energy muon collider is the natural next step in the exploration of fundamental physics after the HL-LHC and a natural complement to a future low-energy Higgs factory. Such a facility would significantly broaden the scope of particle colliders, engaging the many frontiers of the high energy community.
The last European Strategy for Particle Physics Update and later the Particle Physics Project Prioritisation Panel in the US requested a study of the muon collider, which is being carried on by the International Muon Collider Collaboration. In this comprehensive document we present the physics case, the state of the work on accelerator design and technology, and propose an R\&D project that can make the muon collider a reality.
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Submitted 30 April, 2025;
originally announced April 2025.
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MuCol Milestone Report No. 5: Preliminary Parameters
Authors:
Carlotta Accettura,
Simon Adrian,
Rohit Agarwal,
Claudia Ahdida,
Chiara Aimé,
Avni Aksoy,
Gian Luigi Alberghi,
Siobhan Alden,
Luca Alfonso,
Nicola Amapane,
David Amorim,
Paolo Andreetto,
Fabio Anulli,
Rob Appleby,
Artur Apresyan,
Pouya Asadi,
Mohammed Attia Mahmoud,
Bernhard Auchmann,
John Back,
Anthony Badea,
Kyu Jung Bae,
E. J. Bahng,
Lorenzo Balconi,
Fabrice Balli,
Laura Bandiera
, et al. (369 additional authors not shown)
Abstract:
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power…
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This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power consumption of the facility. The data is collected from a collaborative spreadsheet and transferred to overleaf.
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Submitted 5 November, 2024;
originally announced November 2024.
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Interim report for the International Muon Collider Collaboration (IMCC)
Authors:
C. Accettura,
S. Adrian,
R. Agarwal,
C. Ahdida,
C. Aimé,
A. Aksoy,
G. L. Alberghi,
S. Alden,
N. Amapane,
D. Amorim,
P. Andreetto,
F. Anulli,
R. Appleby,
A. Apresyan,
P. Asadi,
M. Attia Mahmoud,
B. Auchmann,
J. Back,
A. Badea,
K. J. Bae,
E. J. Bahng,
L. Balconi,
F. Balli,
L. Bandiera,
C. Barbagallo
, et al. (362 additional authors not shown)
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 accele…
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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.
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Submitted 28 January, 2025; v1 submitted 17 July, 2024;
originally announced July 2024.
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The International Linear Collider: Report to Snowmass 2021
Authors:
Alexander Aryshev,
Ties Behnke,
Mikael Berggren,
James Brau,
Nathaniel Craig,
Ayres Freitas,
Frank Gaede,
Spencer Gessner,
Stefania Gori,
Christophe Grojean,
Sven Heinemeyer,
Daniel Jeans,
Katja Kruger,
Benno List,
Jenny List,
Zhen Liu,
Shinichiro Michizono,
David W. Miller,
Ian Moult,
Hitoshi Murayama,
Tatsuya Nakada,
Emilio Nanni,
Mihoko Nojiri,
Hasan Padamsee,
Maxim Perelstein
, et al. (487 additional authors not shown)
Abstract:
The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This docu…
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The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This document brings the story of the ILC up to date, emphasizing its strong physics motivation, its readiness for construction, and the opportunity it presents to the US and the global particle physics community.
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Submitted 16 January, 2023; v1 submitted 14 March, 2022;
originally announced March 2022.
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The Compact Linear Collider (CLIC) - 2018 Summary Report
Authors:
The CLIC,
CLICdp collaborations,
:,
T. K. Charles,
P. J. Giansiracusa,
T. G. Lucas,
R. P. Rassool,
M. Volpi,
C. Balazs,
K. Afanaciev,
V. Makarenko,
A. Patapenka,
I. Zhuk,
C. Collette,
M. J. Boland,
A. C. Abusleme Hoffman,
M. A. Diaz,
F. Garay,
Y. Chi,
X. He,
G. Pei,
S. Pei,
G. Shu,
X. Wang,
J. Zhang
, et al. (671 additional authors not shown)
Abstract:
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear $e^+e^-$ collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of the CLIC project, its current status, and future developments. It presents the CLIC physics potential and reports on design, technology, and implementation aspects of the accelerator and the…
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The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear $e^+e^-$ collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of the CLIC project, its current status, and future developments. It presents the CLIC physics potential and reports on design, technology, and implementation aspects of the accelerator and the detector. CLIC is foreseen to be built and operated in stages, at centre-of-mass energies of 380 GeV, 1.5 TeV and 3 TeV, respectively. CLIC uses a two-beam acceleration scheme, in which 12 GHz accelerating structures are powered via a high-current drive beam. For the first stage, an alternative with X-band klystron powering is also considered. CLIC accelerator optimisation, technical developments and system tests have resulted in an increased energy efficiency (power around 170 MW) for the 380 GeV stage, together with a reduced cost estimate at the level of 6 billion CHF. The detector concept has been refined using improved software tools. Significant progress has been made on detector technology developments for the tracking and calorimetry systems. A wide range of CLIC physics studies has been conducted, both through full detector simulations and parametric studies, together providing a broad overview of the CLIC physics potential. Each of the three energy stages adds cornerstones of the full CLIC physics programme, such as Higgs width and couplings, top-quark properties, Higgs self-coupling, direct searches, and many precision electroweak measurements. The interpretation of the combined results gives crucial and accurate insight into new physics, largely complementary to LHC and HL-LHC. The construction of the first CLIC energy stage could start by 2026. First beams would be available by 2035, marking the beginning of a broad CLIC physics programme spanning 25-30 years.
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Submitted 6 May, 2019; v1 submitted 14 December, 2018;
originally announced December 2018.