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2025 European Edition of the International Workshop on the Circular Electron-Positron Collider (CEPC), Barcelona, Spain

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UPF (Barcelona, Spain)

UPF

Barcelona, Spain

Carrer de Balmes, 132 - 134, L'Eixample, 08008 Barcelona
Aurelio Juste (ICREA/IFAE), Sebastian Grinstein (IFAE/ICREA)
Description

The 2025 European Edition of the International Workshop on the Circular Electron-Positron Collider (CEPC) will take place in Barcelona, Spain, June 16th to 19th.

CEPC poster 25

The workshop aims at gathering scientists from Europe and around the world to pursue international collaborations for the study of the physics potentials of the CEPC and accelerator and detector optimization, deepen R&D work on critical technologies for future machines and experiments, and develop plans towards an Engineering Design Report (EDR) for the CEPC accelerator and a Technical Design Report (TDR) for a reference detector. 

The workshop program consists of plenary sessions and parallel sessions. They will cover: Physics, Accelerator, Detectors, Computing, Tools and Performance developments relevant for the future colliders.The workshop encourages participation from early career scientists, especially from post-graduate students and postdocs.

 

IHEPCAS CAS

 

 

IFAE BARETEK

 

 

 

 

 

 

 

 

 

Group photo.jpg
Workshop Poster.pdf
Contact
Participants
213 View full list
  • Mon, June 16
  • Tue, June 17
    • 9:00 AM → 10:40 AM
      Accelerator: 3 Aula 207-208

      Aula 207-208

      Convener: Manuela Boscolo (INFN/LNF)
    • 9:00 AM → 10:40 AM
      Detector: Infrastructure, System Integration (Mechanics, Magnet) Auditorio

      Auditorio
      Conveners: Fabrizio Palla , Xiaoyan Ma
    • 9:00 AM → 10:40 AM
      Physics: Electroweak, QCD and Top Aula 201-202

      Aula 201-202

      Convener: Matthias Schott
      • 9:00 AM
        EW Physics at the CEPC: White Paper Studies and recent progress 20m
        Speaker: Hengne Li (South China Normal University)
        20250617_EW_CEPCWSEY25v2.pdf
      • 9:20 AM
        Effective leptonic weak mixing angle determination at the Z resonance 20m
        Speaker: Fulvio Piccinini
      • 9:40 AM
        Verifying the resonance schemes of unstable particles at lepton colliders 20m
        Speaker: Ui Min
        IFAE-CEPC_UIMIN.pdf
      • 10:00 AM
        Connecting scales: RGE effects in the SMEFT at the LHC and future colliders (remotely) 20m
        Speaker: Alejo Rossia
        Rossia_smefit_CEPCEuro2025.pdf
      • 10:20 AM
        The TeraZ mirage: new physics lost in blind directions (remotely) 20m
        Speaker: Juan Carlos Criado
        jccriado_slides.pdf
    • 10:40 AM → 11:10 AM
      Coffee Break 30m UPF

      UPF

      Barcelona, Spain

      Carrer de Balmes, 132 - 134, L'Eixample, 08008 Barcelona
    • 11:10 AM → 12:50 PM
      Accelerator: 4 Aula 207-208

      Aula 207-208

      Convener: Wei Lu (IHEP)
    • 11:10 AM → 12:50 PM
      Detector: TDAQ/Electronics Auditorio

      Auditorio
      Convener: Jingbo Ye
      • 11:10 AM
        Readout Electronics for the CEPC Reference Detector 20m

        The Electronics system of the CEPC reference detector has completed the design of the overall framework based on background simulation and the baseline readout electronics design of the sub-detectors. We will implement the overall design of the Electronics-TDAQ system based on a common backend electronics and a common trigger system design. The framework design of the front-end electronics system will be realized based on a common data-fiber interface and a common radiation-hard power module. Furthermore, based on the baseline schemes of each sub-detector system, a targeted front-end electronics design has been proposed, which will implement a front-end triggerless, full backend trigger architecture. This talk will introduce the design considerations of the CEPC Electronics-TDAQ system, the common electronics framework, and the recent main related R&D efforts.

        Speaker: Wei Wei
        Elec_reftdr.pdf
      • 11:30 AM
        CEPC Detector Readout Trigger System 20m

        The Circular Electron-Positron Collider (CEPC) is a next-generation particle collider designed for precision measurements and searches for new physics. An essential component of this experiment is the trigger system, which will select important events from the vast amount of data. This presentation will cover the study of the CEPC trigger system, including the baseline trigger system design scheme, which consists of a two-level trigger system: the first level hardware trigger and high level trigger. This talk will also present the current trigger simulation results, including the trigger algorithm and the event rate estimation.

        Speaker: Boping Chen (IHEP)
        CEPCworkshop2025.pdf
      • 11:50 AM
        CEPC Detector Data Acquisition System 20m

        This report outlines the design plans for the CEPC detector data acquisition system. Firstly, it describes the RADAR data flow framework, which aims to implement a high-performance and flexible data acquisition platform based on experience from previous experiments. Exploration of heterogeneous acceleration methods is underway to optimize future online data processing capabilities. Additionally, the design of online service software will enhance system stability and provide practical monitoring and management tools for DAQ users.

        The report will also cover the conceptual design of the Experiment Control System (ECS). As a centralized management platform, ECS plans to integrate subsystems such as DAQ and DCS, and introduce AI technologies for intelligent monitoring and anomaly diagnosis, thereby supporting safe and efficient experiment operations.

        Speaker: Xiaolu Ji (Institute of High Energy Physics, Chinese Academy of Sciences)
        DAQ System for CEPC Detector.pdf
      • 12:10 PM
        Determination of the Fluxes in the ILD calorimeters at the Circular Colliders 20m

        The detector based on Particle Flow require highly granular calorimeters posing many challenges in their implementation. Specifically, their electronics must be embedded, and the scaling of the DAQ and cooling systems must be adequately scaled. Using the CaloFlux tool, based on full simulation of the main processes and machine backgrounds, we can estimate the flux of hits in section of the calorimeter system; from there the data and heat production under various assumptions on the electronics can be assessed. This will be illustrated for the ILD detector; extensions to other detector will be discussed.

        Speaker: Vincent Boudry (LLR – CNRS, École polytechnique, Institut Polytechnique de Paris)
        2025-06-16@CEPCWS_CaloFlux.pdf
      • 12:30 PM
        DRD7: status and plans 20m

        The DRD7 (Detector R&D) collaboration, anchored at CERN, unites numerous international research institutes and laboratories to push the boundaries of particle detection technology. This collaboration brings together expertise from fields such as particle physics, electronics engineering, and materials science to develop cutting-edge detectors needed for next-generation experiments in high-energy physics. The goal of DRD7 is to strengthen research partnerships, pool
        resources, and drive technological advancements that will help tackle
        the challenges of future scientific experiments. By adopting open development practices and facilitating the sharing of intellectual property, DRD7 enhances the efficiency and capability of all participants. The work is organized into several work packages, each targeting specific technical goals and aligning with the strategic recommendations of the Roadmap. Additionally, efforts are underway to establish common standards and approaches for electronics, which will
        support the broader DRD program.

        Speaker: David Gascon
        20250617_DRD7Status_CEPC_V3c.pdf
    • 11:10 AM → 12:50 PM
      Physics: Flavour Aula 201-202

      Aula 201-202

      Convener: Hengne Li (South China Normal University)
      • 11:10 AM
        Status of CEPC Flavor Physics Studies: White Paper & recent progress 20m
        Speaker: Manqi RUAN (IHEP)
        CEPC-Flavor-Barcelona-v2.pdf
      • 11:30 AM
        Measuring charged-current leptonic B decays and CKM matrix elements (remotely) 20m
        Speaker: Marco Fedele
        Fedele.pdf
      • 11:50 AM
        Prospect for measurement of CP-violating observables in B0s→D∓sK± decays at a future Z factory 20m
        Speaker: Ji Peng (IHEP)
        Barcelona_CEPC_Bs2DsK_gamma.pdf
      • 12:10 PM
        Implications of a Tera-Z machine for "flavored" new physics (remotely) 20m
        Speaker: Claudia Cornella
      • 12:30 PM
        Prospects for semileptonic B decays, LFU tests, and LFV at LHCb 20m
        Speaker: Ricardo Vazquez Gomez
        LFU_LFV_at_LHCb_VazquezGomez_v2.pdf
    • 12:50 PM → 2:20 PM
      Lunch Break 1h 30m
    • 2:20 PM → 4:20 PM
      Accelerator: 5 Aula 207-208

      Aula 207-208

      Convener: Concepción Oliver (CIEMAT )
    • 2:20 PM → 4:20 PM
      Detector: Calorimeter Auditorio

      Auditorio
      Conveners: Haijun Yang, Vincent Boudry (LLR – CNRS, École polytechnique, Institut Polytechnique de Paris)
    • 2:20 PM → 4:20 PM
      Physics: BSM Aula 201-202

      Aula 201-202

      Convener: Tamara Vazquez Schroeder
      • 2:20 PM
        Status report of the CEPC New Physics Study 20m
        Speaker: Xuai Zhuang
        BsmAtCepc-Xuai_20250617.pdf
      • 2:40 PM
        Heavy neutral Leptons at CEPC 20m
        Speaker: Juergen Reuter (Deutsches Elektronen-Synchroton DESY)
        2025_06_CEPC_HNL.pdf
      • 3:00 PM
        Light scalar searches at lepton colliders 20m
        Speaker: Tania Robens
        cepc_robens.pdf
      • 3:20 PM
        Physics opportunities for light BSM Higgs bosons at e+e- colliders 20m
        Speaker: Andreas Crivellin
        CEPC2025_AC.pdf
      • 3:40 PM
        Connection with gravitational waves (remotely) 20m
        Speaker: Huaike Guo
        Huaike_Guo.pdf
      • 4:00 PM
        Potential search for direct slepton pair production in sqrt(s)=360 GeV at CEPC (remotely) 20m
        Speaker: Jiarong Yuan
        CEPC_June2025.pdf
    • 4:20 PM → 4:50 PM
      Coffee Break 30m UPF

      UPF

      Barcelona, Spain

      Carrer de Balmes, 132 - 134, L'Eixample, 08008 Barcelona
    • 4:50 PM → 6:50 PM
      Accelerator: 6 Aula 207-208

      Aula 207-208

      Convener: Angeles Faus-Golfe (IJCLab)
    • 4:50 PM → 6:50 PM
      Joint Simulation and Software session with detector group Auditorio

      Auditorio
      Convener: Manqi RUAN (IHEP)
    • 8:00 PM → 10:00 PM
      Social Event: Gala Dinner 2h Flamant Restaurant

      Flamant Restaurant

      Carrer d'Enric Granados, 23, L'Eixample, 08007 Barcelona
  • Wed, June 18
    • 9:00 AM → 11:00 AM
      Joint Session on MDI Auditorio

      Auditorio
      Convener: Maria Enrica Biagini
    • 9:00 AM → 11:00 AM
      Physics: Electroweak, QCD and Top Aula 201-202

      Aula 201-202

      Convener: Andreas Crivellin
    • 11:00 AM → 11:30 AM
      Coffee Break 30m UPF

      UPF

      Barcelona, Spain

      Carrer de Balmes, 132 - 134, L'Eixample, 08008 Barcelona
    • 11:30 AM → 1:00 PM
      Plenary Auditorio

      Auditorio
      Convener: William John Murray
      • 11:30 AM
        Keynote physics: Why are these projects interesting? 30m
        Speaker: Andrea Wulzer (ICREA@IFAE)
        talk_wulzer.pdf
      • 12:00 PM
        Panel Discussion 1h

        Moderator: Geoffrey Taylor

        Speakers: Alain Blondel (DPNC Université de Genève), Jenny List (DESY), Karl Jakobs, Lydia Brenner, Nadia Pastrone, Tatsuya Nakada, Yifang Wang
    • 1:00 PM → 2:30 PM
      Lunch Break 1h 30m
    • 2:30 PM → 6:30 PM
      Social Event: free afternoon 4h
  • Thu, June 19
    • 9:00 AM → 10:30 AM
      Plenary Auditorio

      Auditorio
      Convener: Brian Foster (DESY/Oxford)
    • 10:30 AM → 11:00 AM
      Coffee Break 30m UPF

      UPF

      Barcelona, Spain

      Carrer de Balmes, 132 - 134, L'Eixample, 08008 Barcelona
    • 11:00 AM → 12:40 PM
      Plenary Auditorio

      Auditorio
      Convener: Sebastian Grinstein (IFAE/ICREA)
      • 11:00 AM
        The LGAD Technology: from Concept to Implementation 30m
        Speakers: Pablo Fernandez (CNM), Pablo Fernandez Martinez (IMB-CNM, CSIC), Pablo Fernández Martínez (IFAE)
        20250619_Pablo Fernandez_CECPWorkshop_LGAD.pdf
      • 11:30 AM
        Environmental Issues 30m
        Speaker: Samuel Calvet (LPCA / IN2P3 / CNRS)
        2025_06_19_CEPC_Sustainability.pdf
      • 12:00 PM
        What can a circular collider in the Z pole add to flavor factories 30m
        Speakers: Nazila Mahmoudi, Nazila Mahmoudi (Lyon University)
        Nazila_CEPC_June2025.pdf
      • 12:30 PM
        Closing 10m
        Speaker: Sebastian Grinstein (IFAE/ICREA)
        4-closure.pdf
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