The forward physics facility: Physics opportunities and conceptual design

作者：Luis A. Anchordoqui, John Anders, Akitaka Ariga, Tomoko Ariga, David Asner, Jeremy Atkinson, A. J. Barr, L. Bartoszek, Brian Batell, H. P. Beck, F. U. Bernlochner, Bipul Bhuyan, Jianming Bian, A. E. Bolotnikov, Silas Bosco, Jamie Boyd, Nick Callaghan, G. Carini, Michael Carrigan, Kohei Chinone, Matthew Citron, Isabella Coronado, Peter B. Denton, Albert De Roeck, M. Diwan, Sergey Dmitrievsky, Radu Dobre, Monica D'Onofrio, Jonathan L. Feng, Max Fieg, Elena Firu, Reinaldo Francener, Haruhi Fujimori, F. Golf, Yury Gornushkin, K. Gunthoti, C. Gwenlan, C. B. Gwilliam, A. Haas, Elie Hammou, D. Hayakawa, Christopher S. Hill, Dariush Imani, Tomohiro Inada, S. Jakobsen, Yu Seon Jeong, Kevin J. Kelly, S. Kelly, Larry Kennedy, Felix Kling, U. Köse, Peter Krack, Jinmian Li, Yichen Li, Steven Linden, Ming Liu, Kristin Lohwasser, Adam Lowe, Steven Lowette, Toni Mäkelä, Roshan Mammen Abraham, C. Mauger, K. Mavrokoridis, Josh McFayden, H. Menjo, Connor Miraval, K. Moriyama, Toshiyuki Nakano, Ken Ohashi, Toranosuke Okumura, Hidetoshi Otono, Vittorio Paolone, Saba Parsa, Junle Pei, M. Queitsch-Maitland, Mary Hall Reno, S. Rescia, F. Resnati, Adam P. Roberts, Juan Rojo, Hiroki Rokujo, Olivier Salin, Jack Sander, Sai Neha Santpur, Osamu Sato, P. Scampoli, Ryan Schmitz, Matthias Schott, A. Sfyrla, Dennis Soldin, A. Sotnikov, Anna Staśto, George Stavrakis, Jacob Steenis, David Stuart, Juan Salvador Tafoya Vargas, Yosuke Takubo, Simon Thor, Sebastian Trojanowski, Yu-Dai Tsai, S. Tufanli, Svetlana Vasina, M. Vicenzi, I. Vivarelli, N. Vranješ, M. Vranješ Milosavljević, Kazuhiro Watanabe, M. Weber, Ben Wilson, Wenjie Wu, Tiepolo Wybouw, K. Yip, J. Yoo, Jonghee Yoo · 发表于：Nuclear Physics B · 年份：2026 · DOI：10.1016/j.nuclphysb.2026.117398 · 被引用次数：1 · 研究领域：Dark Matter and Cosmic Phenomena、Particle Detector Development and Performance、Particle Accelerators and Free-Electron Lasers

The Forward Physics Facility (FPF) is a proposed extension of the HL-LHC program designed to exploit the unique scientific opportunities offered by the intense flux of high energy neutrinos, and possibly new particles, in the far-forward direction. Located in a well-shielded cavern 627 m downstream of one of the LHC interaction points, the facility will support a broad and ambitious physics program that significantly expands the discovery potential of the HL-LHC. Equipped with four complementary detectors -- FLArE, FASER$ν$2, FASER2, and FORMOSA -- the FPF will enable breakthrough measurements that will advance our understanding of neutrino physics, quantum chromodynamics, and astroparticle physics, and will search for dark matter and other new particles. With this Letter of Intent, we propose the construction of the FPF cavern and the construction, integration, and installation of its experiments. We summarize the physics case, the facility design, the layout and components of the detectors, as well as the envisioned collaboration structure, cost estimate, and implementation timeline.