The Forward Physics Facility: Physics Opportunities and Conceptual Design

Luis A. Anchordoqui; John Kenneth Anders; Akitaka Ariga; Tomoko Ariga; David Asner; Jeremy Atkinson; Alan J. Barr; Larry Bartoszek; Brian Batell; Hans Peter Beck; Florian U. Bernlochner; Bipul Bhuyan; Jianming Bian; Aleksey Bolotnikov; Silas Bosco; Jamie Boyd; Nick Callaghan; Gabriella Carini; Michael Carrigan; Kohei Chinone; Matthew Citron; Isabella Coronado; Peter Denton; Albert De Roeck; Milind V. Diwan; Sergey Dmitrievsky; Radu Dobre; Monica D ’ Onofrio; Jonathan L. Feng; Max Fieg; Elena Firu; Reinaldo Francener; Haruhi Fujimori; Frank Golf; Yury Gornushkin; Kranti Gunthoti; Claire Gwenlan; Carl Gwilliam; Andrew Haas; Elie Hammou; Daiki Hayakawa; Christopher S. Hill; Dariush Imani; Tomohiro Inada; Sune Jakobsen; Yu Seon Jeong; Kevin J. Kelly; Samantha Kelly; Luke Kennedy; Felix Kling; Umut Kose; Peter Krack; Jinmian Li; Yichen Li; Steven Linden; Ming Liu; Kristin Lohwasser; Adam Lowe; Steven Lowette; M. Toni; Roshan Mammen Abraham; Christopher Mauger; Konstantinos Mavrokoridis; Josh Mcfayden; Hiroaki Menjo; Connor Miraval; Keiko Moriyama; Toshiyuki Nakano; Ken Ohashi; Toranosuke Okumura; Hidetoshi Otono; Vittorio Paolone; Saba Parsa; Junle Pei; Michaela Queitsch-Maitland; Mary Hall Reno; Sergio Rescia; Filippo Resnati; Adam Roberts; Juan Rojo; Hiroki Rokujo; Olivier Salin; Jack Sander; Sai Neha Santpur; Osamu Sato; Paola Scampoli; Ryan Schmitz; Matthias Schott; Anna Sfyrla; Dennis Soldin; Albert Sotnikov; Anna Stasto; George Stavrakis; Jacob Steenis; David Stuart; Juan Salvador Tafoya Vargas; Yosuke Takubo; Simon Thor; Sebastian Trojanowski; Yu Dai Tsai; Serhan Tufanli; Svetlana Vasina; Matteo Vicenzi; Iacopo Vivarelli; Nenad Vranjes; Marija Vranjes Milosavljevic; Kazuhiro Watanabe; Michele Weber; Benjamin Wilson; Wenjie Wu; Tiepolo Wybouw; Kin Yip; Jaehyeok Yoo; Jonghee Yoo

doi:10.1016/j.nuclphysb.2026.117398

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The Forward Physics Facility: Physics Opportunities and Conceptual Design

Journal article

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The Forward Physics Facility: Physics Opportunities and Conceptual Design

Luis A. Anchordoqui, John Kenneth Anders, Akitaka Ariga, Tomoko Ariga, David Asner, Jeremy Atkinson, Alan J. Barr, Larry Bartoszek, Brian Batell, Hans Peter Beck, …

Nuclear physics. B, 117398

03/2026

DOI: 10.1016/j.nuclphysb.2026.117398

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Abstract

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, FASERν2, 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.

Experimental Design

Large Hadron Collider

neutrinos

dark matter

astroparticle physics

QCD

parton distribution functions

Details

Title: Subtitle: The Forward Physics Facility: Physics Opportunities and Conceptual Design
Creators: Luis A. Anchordoqui
John Kenneth Anders
Akitaka Ariga
Tomoko Ariga
David Asner
Jeremy Atkinson
Alan J. Barr
Larry Bartoszek
Brian Batell
Hans Peter Beck
Florian U. Bernlochner
Bipul Bhuyan
Jianming Bian
Aleksey Bolotnikov
Silas Bosco
Jamie Boyd
Nick Callaghan
Gabriella Carini
Michael Carrigan
Kohei Chinone
Matthew Citron
Isabella Coronado
Peter Denton
Albert De Roeck
Milind V. Diwan
Sergey Dmitrievsky
Radu Dobre
Monica D ’ Onofrio
Jonathan L. Feng
Max Fieg
Elena Firu
Reinaldo Francener
Haruhi Fujimori
Frank Golf
Yury Gornushkin
Kranti Gunthoti
Claire Gwenlan
Carl Gwilliam
Andrew Haas
Elie Hammou
Daiki Hayakawa
Christopher S. Hill
Dariush Imani
Tomohiro Inada
Sune Jakobsen
Yu Seon Jeong
Kevin J. Kelly
Samantha Kelly
Luke Kennedy
Felix Kling
Umut Kose
Peter Krack
Jinmian Li
Yichen Li
Steven Linden
Ming Liu
Kristin Lohwasser
Adam Lowe
Steven Lowette
M. Toni
Roshan Mammen Abraham
Christopher Mauger
Konstantinos Mavrokoridis
Josh Mcfayden
Hiroaki Menjo
Connor Miraval
Keiko Moriyama
Toshiyuki Nakano
Ken Ohashi
Toranosuke Okumura
Hidetoshi Otono
Vittorio Paolone
Saba Parsa
Junle Pei
Michaela Queitsch-Maitland
Mary Hall Reno
Sergio Rescia
Filippo Resnati
Adam Roberts
Juan Rojo
Hiroki Rokujo
Olivier Salin
Jack Sander
Sai Neha Santpur
Osamu Sato
Paola Scampoli
Ryan Schmitz
Matthias Schott
Anna Sfyrla
Dennis Soldin
Albert Sotnikov
Anna Stasto
George Stavrakis
Jacob Steenis
David Stuart
Juan Salvador Tafoya Vargas
Yosuke Takubo
Simon Thor
Sebastian Trojanowski
Yu Dai Tsai
Serhan Tufanli
Svetlana Vasina
Matteo Vicenzi
Iacopo Vivarelli
Nenad Vranjes
Marija Vranjes Milosavljevic
Kazuhiro Watanabe
Michele Weber
Benjamin Wilson
Wenjie Wu
Tiepolo Wybouw
Kin Yip
Jaehyeok Yoo
Jonghee Yoo
Resource Type: Journal article
Publication Details: Nuclear physics. B, 117398
DOI: 10.1016/j.nuclphysb.2026.117398
ISSN: 0550-3213
Publisher: Elsevier
Language: English
Electronic publication date: 03/2026
Academic Unit: Physics and Astronomy
Record Identifier: 9985147184802771

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