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arXiv · 2505.11292

Status of the International Linear Collider

Y. Abe·S. Arai·S. Araki·H. Araki·Y. Arimoto·A. Aryshev·S. Asai·R. Bajpai·T. Behnke·S. Belomestnykh·I. Bozovic·J. E. Brau·K. Buesser·P. N. Burrows·N. Catalan-Lasheras·E. Cenni·S. Chen·J. Clark·D. Delikaris·M. Demarteau·D. Denisov·S. Doebert·T. Dohmae·R. Dowd·G. Dugan·M. Egi·Y. Enomoto·A. Faus Golfe·F. Forti·K. Fujii·M. Fukuda·F. Gaede·Y. Gao·L. Garcia-Tabares·R. L. Geng·T. Goto·J. Grames·K. Hanagaki·T. Hara·K. Hara·C. Hensel·M. Hiraki·S. Hirose·T. Honma·Y. Horii·K. Inami·M. Ishino·H. Ito·M. Iwasaki·D. Jeans·O. Jinnouchi·R. Katayama·K. Kawagoe·S. Kessoku·T. Kitahara·T. Koseki·K. Krueger·T. Kubo·K. Kubo·A. Kumar·M. Kurata·M. Kuriki·A. J. Lankford·A. Latina·R. Laxdal·M. Liepe·J. List·B. List·C. Madec·J. Maeda·T. W. Markiewicz·T. Masubuchi·T. Matsumoto·K. Mazumdar·P. McBride·P. A. McIntosh·S. Michizono·T. Miura·L. Monaco·G. Moortgat-Pick·T. Mori·Y. Morikawa·H. Murayama·T. Nakada·H. Nakai·H. Nakajima·E. Nakamura·K. Nakamura·K. Nakanishi·T. Nakaya·O. Napoly·S. Narita·M. Nojiri·H. Oide·Y. Okada·T. Okugi·C. Oliver Amoros·M. Omet·W. Ootani·J. Osborne
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Abstract

This paper is not a proposal for a CERN future project but provides information on the International Linear Collider (ILC) considered for Japan in order to facilitate the European Strategy discussion in a global context. It describes progress to date, ongoing engineering studies, updated cost estimate for the machine at $\sqrt{s}=250~\rm GeV$ and the situation in Japan. The physics of the ILC is not presented here, but jointly for all Linear Collider projects in a separate document ``A Linear Collider Vision for the Future of Particle Physics'' submitted for the forthcoming European Strategy deliberations.

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Y. Abe, S. Arai, S. Araki, H. Araki, Y. Arimoto, A. Aryshev, S. Asai, R. Bajpai, T. Behnke, S. Belomestnykh, I. Bozovic, J. E. Brau, K. Buesser, P. N. Burrows, N. Catalan-Lasheras, E. Cenni, S. Chen, J. Clark, D. Delikaris, M. Demarteau, D. Denisov, S. Doebert, T. Dohmae, R. Dowd, G. Dugan, M. Egi, Y. Enomoto, A. Faus Golfe, F. Forti, K. Fujii, M. Fukuda, F. Gaede, Y. Gao, L. Garcia-Tabares, R. L. Geng, T. Goto, J. Grames, K. Hanagaki, T. Hara, K. Hara, C. Hensel, M. Hiraki, S. Hirose, T. Honma, Y. Horii, K. Inami, M. Ishino, H. Ito, M. Iwasaki, D. Jeans, O. Jinnouchi, R. Katayama, K. Kawagoe, S. Kessoku, T. Kitahara, T. Koseki, K. Krueger, T. Kubo, K. Kubo, A. Kumar, M. Kurata, M. Kuriki, A. J. Lankford, A. Latina, R. Laxdal, M. Liepe, J. List, B. List, C. Madec, J. Maeda, T. W. Markiewicz, T. Masubuchi, T. Matsumoto, K. Mazumdar, P. McBride, P. A. McIntosh, S. Michizono, T. Miura, L. Monaco, G. Moortgat-Pick, T. Mori, Y. Morikawa, H. Murayama, T. Nakada, H. Nakai, H. Nakajima, E. Nakamura, K. Nakamura, K. Nakanishi, T. Nakaya, O. Napoly, S. Narita, M. Nojiri, H. Oide, Y. Okada, T. Okugi, C. Oliver Amoros, M. Omet, W. Ootani, J. Osborne. 2025-05-16. Status of the International Linear Collider. https://arxiv.org/abs/2505.11292

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