Forward Physics Facility


The Forward Physics Facility (FPF) is a proposal to build a new underground cavern at the Large Hadron Collider (LHC) to host a suite of far-forward experiments during the High-Luminosity LHC (HL-LHC) era. The existing large LHC detectors have un-instrumented regions along the beam line, and so miss the physics opportunities provided by the enormous flux of particles produced in the far-forward direction.  Without the FPF, the HL-LHC will be blind to neutrinos and many proposed new particles.  However, small pathfinder experiments currently operating in the far-forward region at the LHC have recently directly observed collider neutrinos for the first time and demonstrated the potential for world-leading sensitivity to new physics.  With the FPF, a diverse suite of experiments will realize this potential by detecting ~1,000,000 neutrino interactions at the highest energies from a human source, expanding our understanding of proton and nuclear structure and the strong interactions to new regimes, clarifying astroparticle data, and carrying out world-leading searches for light dark matter, dark sectors, and many other new particles.

PBC FPF Subgroup

Convener: Jamie Boyd (CERN) Core Members: Marco Andreini (CERN), Kincso Balazs (CERN), Jean-Pierre Corso (CERN), Jonathan Feng (UC Irvine), Anastasiya Magazinik (CERN), John Osborne (CERN)

Mandate and Objectives The PBC FPF Subgroup is mandated to provide a Conceptual Design of the facility after an analysis of the possible options and taking into account the impact on the LHC Machine during construction and installation and the HL-LHC operational scenario. The Subgroup's objectives are to

  • Study the possible civil engineering scenarios for the construction of the Facility, their impact on the LHC machine and its infrastructure, and study the integration of the FPF and its experiments in the HL-LHC timeline.
  • Determine the potential of FPF experiments to enhance the LHC physics program for both SM and BSM physics.
  • Foster the development of experiments to realize this potential, and optimize their experimental setup within the FPF cavern based on the physics requirements identified by the Working Groups.
  • Evaluate the performance of the FPF experiments based on the expected HL-LHC operational scenario.

FPF Working Group Conveners

Steering Committee Jamie Boyd (CERN), Albert De Roeck (CERN), Milind Diwan (Brookhaven), Jonathan Feng (UC Irvine), Felix Kling (DESY)

WG0 Facility Jamie Boyd (CERN)

WG1 Neutrino Interactions Juan Rojo (Nikhef)

WG2 Charm Production Anna Stasto (Penn State)

WG3 Light Hadron Production and Astroparticle Connections Luis Anchordoqui (Lehman), Dennis Soldin (Karlsruhe)

WG4 New Physics Brian Batell (Pittsburgh), Sebastian Trojanowski (Warsaw)

WG5 FASER2 Alan Barr (Oxford), Josh McFayden (Sussex), Hide Otono (Kyushu)

WG6 FASERnu2 Aki Ariga (Chiba), Tomoko Ariga (Kyushu)

WG7 FLArE Jianming Bian (UC Irvine), Milind Diwan (Brookhaven)

WG8 Advanced SND Giovanni De Lellis (Napoli)

WG9 FORMOSA Matthew Citron (UC Davis), Chris Hill (Ohio State)

Exp/Th Working Group Liaisons

WG5 FASER2 Josh McFayden (Sussex)

WG6 FASERnu2 Aki Ariga (Chiba), Tomoko Ariga (Kyushu)

WG7 FLArE Steve Linden (Brookhaven), Wenjie Wu (UC Irvine)

WG8 Advanced SND Antonia Di Crescenzo (CERN, Napoli) (WG1-3), Cristovao Vilela (CERN, Lisbon) (WG4)

WG9 FORMOSA Matthew Citron (UC Davis)

Current Experiments




Meetings and Communication

Much of the organization and communication of the FPF Working Groups takes place in the FPF Slack Workspace. To be added to this workspace, contact Juan Rojo (Nikhef).

The Forward Physics Seminar meets once each month typically on the first Tuesday.  For details or to be added to the mailing list, contact Brian Batell (Pittsburgh) and Sebastian Trojanowski (Warsaw).

The FLArE Working Group meets twice each month typically on Mondays.  For details or to be added to the mailing list, contact Steve Linden (Brookhaven). 


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