L1-mandate

This page documents the mandate for the US-FCC PED L1 coordinators.

Physics

Current Coordinators: Loukas Gouskos (Brown), Patrick Meade (Stony Brook)

• The Physics group of the US-FCC is led by two experimental particle physicists and accompanied by one theorist to maintain strong connections between experiment and theory. Physics coordinators are appointed for a two-year term, which may be extendable or renewable, particularly in case of unforeseen changes in the project timeline within the US and/or within FCC international. The initial appointment will take effect in February 2026. A staggered appointment structure between coordinators will be introduced at a later stage to ensure continuity and long-term consistency of the program.
• The Physics Coordinators are responsible for shaping and advancing a coherent and ambitious US physics program for the FCC.
• Their role includes:
  • Identifying, fostering and coordinating key areas of expertise within the US community, with the aim of developing high-impact lines of research that support and provide critical input to FCC international.
  • Exploring and promoting potential novel physics opportunities and scenarios that extend beyond the scope of the current FCC feasibility study.
  • Strengthening and expanding existing areas of activity where they align with local expertise and strategic priorities.
  • Driving the development of innovative algorithms and analysis techniques for physics object reconstruction. 
  • Working in close collaboration with the L1 coordinators of the other groups to:
    • define and articulate physics-driven detector capabilities in close interaction with detector experts; 
    • ensure broad and effective access to the necessary software and computing infrastructure together with the corresponding coordinators; 
    • participate in the organization of workshops and oversee abstract submissions at conferences in collaboration with the communication coordinator.
  • Maintaining open communication and close collaboration with international partners and FCC Physics coordinators.
  • Reporting periodically to the relevant US-FCC leadership bodies and other meetings.
  • Building on and further develop the physics arguments for FCC-ee for any upcoming U.S. reviews, including the P5-recommended panel. 
  • Establishing topical sub-groups to stimulate focused discussion, foster collaboration, and accelerate progress in targeted research directions (e.g. flavour, QCD, etc)
  • Defining and overseeing physics sub-groups, holding regular U.S. FCC-physics steering group meetings.

Detector & Advanced Technology

Current Coordinators: Christoph Paus (MIT), Charlie Young (SLAC)

• The Detector group of the US-FCC is led by two experimental particle physicists, and it includes several sub-groups primarily split according to the target detector technology.
• Detector coordinators are appointed with a two-year term, which may be extendable or renewal, in particular in case of unforeseen project timeline changes within the US and/or within FCC international. The initial appointment will take effect in February 2026.
• Their role includes: 
  • Overseeing the detector sub-groups and chairing the regular U.S. HFCC-PED detector steering group meetings.
  • Maintaining an updated list of EoIs, documenting the U.S. interests and expertise. 
  • Ensuring that each working group has a bottom-up process, engaging the U.S. community, to identify and prioritize critical R&D that must be pursued. Identify and document a prioritized funding request across detector sub-groups.
  • Encouraging and supporting the development of more detector concept studies based on different technologies and layout (with respect to already existing studies). 
  • Ensuring that ongoing R&D toward FCC-ee is embedded within the DRD and CPAD-RDC groups. Engage the DRD and CPAD-RDC group coordinators as appropriate.
  • Maintaining active communication and reporting on U.S. plans and progress with the international FCC-detector concept group. 
  • Identifying and working with efforts supported by other sources of funding, including national laboratory directed efforts and other DOE grants, that are synergistic with FCC-ee detector R&D needs.
  • Identifying novel detector R&D concepts, including AI/ML driven technologies that hold promise for addressing the challenges at FCC-ee.
  • Identifying synergies with EIC and other experimental efforts, Seek to build collaborations to leverage from other efforts.
  • Hosting topical workshops and other events as appropriate to foster collaboration and discussion within the U.S. community – inviting international stakeholders as relevant. 
  • Maintaining milestones for supported R&D efforts and report on their progress to the U.S. FCC management and to other stakeholders as relevant. 
  • Working in close collaboration with other L1 coordinators of the other groups to:
    • Define the physics requirements and benchmark processes required to study variations in detector models;
    • Define and document the detector descriptions required for further studies;
    • Ensure communicating requirements for databases, software and simulation tools. 
  • Develop the potential U.S. scope in detector R&D and construction for FCC-ee for any upcoming U.S. reviews, including the P5-recommended panel. 

Software & Computing

Current Coordinators: Lothar Bauerdick (Fermilab), Mike Hance (UC Santa Cruz)

• The Software & Computing group of the US-FCC is led by two experimental particle physicists, and it includes several work packages.
• Software and Computing coordinators are appointed with a two-year term, which may be extendable or renewal, in particular in case of unforeseen project timeline changes within the US and/or within FCC international. The initial appointment is effective as of January 2026.
• Their role includes:
  • Overseeing the software and computing sub-groups and chairing the regular U.S. HFCC-PED S&C steering group meetings.
  • Maintaining an updated list of EoIs, documenting the U.S. interests and expertise. 
  • Ensuring that each working group has a bottom-up process, engaging the U.S. community, to identify and prioritize critical software efforts that must be pursued. Ensure alignment with expertise within U.S. groups. Identifying and document a prioritized funding request across detector sub-groups.
  • Identifying the software and computing infrastructure required to pursue the simulation and analyses for FCC-ee, as well as supporting individuals to access such infrastructure. 
  • Maintaining active communication and reporting on U.S. plans and progress with the international FCC-software/computing group. 
  • Identifying and working with efforts supported by other sources of funding, including national laboratory directed efforts and other DOE grants, that are synergistic with FCC-ee S&C needs.
  • Identifying and promoting novel software concepts, including support for AI/ML driven applications that hold promise for addressing the challenges at FCC-ee. 
  • Identifying opportunistic resources including HPC and GPUs that can potentially provide platforms for large-scale simulation studies for FCC-ee.  
  • Identifying synergies with other experimental efforts in particular LHC, and seeking to leverage from these developments. 
  • Hosting topical workshops, software tutorials/trainings, and other events as appropriate to foster collaboration and discussion within the U.S. community – inviting international stakeholders as relevant. 
  • Maintaining milestones for supported S&C efforts and reporting on their progress to the U.S. FCC management and to other stakeholders as relevant. 
  • Working in close collaboration with the  L1 coordinators of the other groups to understand the software and computing needs for physics and detector groups.  
  • Developing the potential U.S. scope in software development and computing infrastructure for FCC-ee for any upcoming U.S. reviews, including the P5-recommended panel. 

Communication

Current PED Coordinator: Liza Brost (BNL)

• The Communication group within PED is led by one particle physicist, to work in close collaboration with the corresponding coordinator from the Accelerator section. The Communication Coordinator is appointed for a one-year term, which may be extendable or renewable, particularly in case of unforeseen changes in the project timeline within the US and/or within FCC international. The initial appointment will take effect in February 2026.
• The Communication Coordinator is responsible for promoting a strong US involvement into the physics, detector, and software & computing program of the FCC.
• The role includes the following responsibilities:
  • Contributing to the organization of US-FCC workshops.
  • Coordinating communication and outreach activities in support of US-FCC efforts, including the development and maintenance of promotional material (e.g. brochures, websites, etc)
  • Encouraging active and inclusive engagement from both early career and senior members of the community 
  • Overseeing the submission of abstracts and the assignment of talks at conferences and workshops, in particular national conferences.
  • Initiating and supporting activities that promote a cohesive and engaged community, including workshops, brainstorming sessions, informal gatherings, etc.
  • Ensuring consistency and coherence of messaging across US-FCC communications and outreach efforts
  • Communicate regularly with the U.S. community on upcoming events, technical and strategic developments and other events as appropriate.
  • Serving as liaison between the US-FCC community and the corresponding FCC international communication structure.
  • Reporting periodically to the relevant US-FCC leadership bodies.
• The Communication Coordinator may establish L2 sub-groups and appoint colleagues to oversee specific initiatives associated with the responsibilities outlined above. This delegation is intended to ensure effective distribution of effort commensurate with the scope of the role.