ESPPU INPUT: C$^3$ within the "Linear Collider Vision"

Matthew B. Andorf; Mei Bai; Pushpalatha Bhat; Valery Borzenets; Martin Breidenbach; Sridhara Dasu; Ankur Dhar; Tristan du Pree; Lindsey Gray; Spencer Gessner; Ryan Herbst; Andrew Haase; Erik Jongewaard; Dongsung Kim; Anoop Nagesh Koushik; Anatoly K. Krasnykh; Zenghai Li; Chao Liu; Jared Maxson; Julian Merrick; Sophia L. Morton; Emilio A. Nanni; Alireza Nassiri; Cho-Kuen Ng; Dimitrios Ntounis; Mohamed A. K. Othman; Marco Oriunno; Dennis Palmer; Michael E. Peskin; Caterina Vernieri; Muhammad Shumail; Evgenya Simakov; Emma Snively; Ann Sy; Harry van der Graaf; Brandon Weatherford; Haoran Xu

arXiv · 2503.20829

ESPPU INPUT: C$^3$ within the "Linear Collider Vision"

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Abstract

The Linear Collider Vision calls for a Linear Collider Facility with a physics reach from a Higgs Factory to the TeV-scale with $e^+e^{-}$ collisions. One of the technologies under consideration for the accelerator is a cold-copper distributed-coupling linac capable of achieving high gradient. This technology is being pursued by the C$^3$ collaboration to understand its applicability to future colliders and broader scientific applications. In this input we share the baseline parameters for a C$^3$ Higgs-factory and the energy reach of up to 3 TeV in the 33 km tunnel foreseen under the Linear Collider Vision. Recent results, near-term plans and future R\&D needs are highlighted.

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Matthew B. Andorf, Mei Bai, Pushpalatha Bhat, Valery Borzenets, Martin Breidenbach, Sridhara Dasu, Ankur Dhar, Tristan du Pree, Lindsey Gray, Spencer Gessner, Ryan Herbst, Andrew Haase, Erik Jongewaard, Dongsung Kim, Anoop Nagesh Koushik, Anatoly K. Krasnykh, Zenghai Li, Chao Liu, Jared Maxson, Julian Merrick, Sophia L. Morton, Emilio A. Nanni, Alireza Nassiri, Cho-Kuen Ng, Dimitrios Ntounis, Mohamed A. K. Othman, Marco Oriunno, Dennis Palmer, Michael E. Peskin, Caterina Vernieri, Muhammad Shumail, Evgenya Simakov, Emma Snively, Ann Sy, Harry van der Graaf, Brandon Weatherford, Haoran Xu. 2025-03-26. ESPPU INPUT: C$^3$ within the "Linear Collider Vision". https://arxiv.org/abs/2503.20829

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