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The 2023 International Workshop on Circular Electron Positron Collider (European Edition)

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University of Edinburgh George Square Central Area

University of Edinburgh George Square Central Area

3-July: 40 George Square, Newington, Edinburgh EH8 9JU 4-6 July: Appleton Tower, 11 Crichton St, Newington, Edinburgh EH8 9LE
Joao Guimaraes da Costa (Institute of High Energy Physics, Chinese Academy of Sciences), Manqi RUAN (IHEP), Yanyan Gao (University of Edinburgh), jie Gao (Institute of High Energy Physics)
Description

The 2023 international workshop on the Circular Electron Positron Collider (CEPC) will take place at the University of Edinburgh between 3-6 July. 

The workshop intends to gather scientists around the world to study the physics potentials of the CEPC, pursue international collaborations for accelerator and detector optimisation, deepen R&D work of critical technologies, and develop initial plans towards Technical Design Reports (TDR). The high energy Super proton-proton Collider (SppC), a possible upgrade of the CEPC, will also be discussed. 

The workshop program consists of plenary sessions and parallel sessions. The workshop encourages participation from early career scientists, especially from post-graduate students and postdocs. 

This event will be run in hybrid mode with the following zoom links:

Plenary: Zoom-Plenary (Passcode: nYE11fb0)

Parallel – Physics:Zoom-Physics (Passcode: za5eL00M)
Parallel – Detector: Zoom-Detector (Passcode: mb6nuQi6)
Parallel – Accelerator: Zoom-Accelerator  (Passcode: v7ytcu1W)

This event is hosted by the University of Edinburgh and organised by a UK organising committee from the following institutes, with considerable support from Institute of High Energy Physics (IHEP) Chinese Academy of Sciences.

campus-maps.pdf
Conference photo
FirstBulletin.pdf
SecondBulletin.pdf
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Participants
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  • Monday 3 July
    • 08:30 → 10:40
      Plenary Lecture Theatre A (40 George Square)

      Lecture Theatre A

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX

      https://ed-ac-uk.zoom.us/j/89714782154 (Passcode: nYE11fb0)

      Convener: Prof. Joao Guimaraes da Costa (Institute of High Energy Physics, Chinese Academy of Sciences)
    • 10:40 → 11:10
      Coffee and tea break 30m 40 George Square

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JU
    • 11:10 → 13:10
      Plenary Lecture Theatre A (40 George Square)

      Lecture Theatre A

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX

      https://ed-ac-uk.zoom.us/j/89714782154 (Passcode: nYE11fb0)

      Convener: Prof. Joao Guimaraes da Costa (Institute of High Energy Physics, Chinese Academy of Sciences)
      • 11:10
        Overview of ILC and CLIC 30m
        Speaker: Prof. Steinar Stapnes (Oslo University)
        linear-colliders.pptx
      • 11:40
        Overview of the FCC 30m
        Speaker: Dr Sarah Williams (University of Cambridge)
        CEPCworkshop-FCCoverview-030723.pdf
      • 12:10
        Physics motivation 50m
        Speaker: Prof. Nima Akani-Hamed
    • 13:10 → 14:00
      Lunch break 50m 40 George Square

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX
    • 14:00 → 15:40
      Parallel - Accelerator Lecture Theatre C (40 George Square)

      Lecture Theatre C

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX
      Convener: jie Gao (Institute of High Energy Physics)
    • 14:00 → 15:40
      Parallel - Detector: Silicon tracking detector Lecture Theatre A (40 George Square)

      Lecture Theatre A

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX
      Conveners: Attilio Andreazza (INFN and Università di Milano), Harald Fox (Lancaster University), Meng Wang (Shandong University), Zhijun Liang (IHEP Beijing)
    • 14:00 → 15:40
      Parallel - Physics: Higgs and Top Lecture Theatre B (40 George Square)

      Lecture Theatre B

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JU
      Convener: Yaquan Fang
    • 15:40 → 16:10
      Coffee and tea break 30m 40 George Square

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JU
    • 16:10 → 17:50
      Parallel - Accelerator Lecture Theatre C (40 George Square)

      Lecture Theatre C

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX
      Convener: Yuhui Li
    • 16:10 → 17:58
      Parallel - Detector: Gaseous Tracker Lecture Theatre A (40 George Square)

      Lecture Theatre A

      40 George Square

      40 George Square, Newington, Edinburgh EH8 9JX
      Conveners: Huirong Qi (Institute of High Energy Physics, CAS), Mingyi Dong (Institute of High Energy Physics, Chinese Academy of Sciences), Riccardo Farinelli (INFN - Ferrara)
    • 18:00 → 20:00
      Social Event: Welcome Reception Concourse (Appleton Tower)

      Concourse

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE

      King and Queen coronation visit to Edinburgh:
      https://www.gov.scot/publications/king-and-queen-visit-to-edinburgh-july-2023-events/

      Edinburgh open top bus tours:
      https://edinburghtour.com/

      Go up Arthur's seat.

      Whisky experience:
      https://www.scotchwhiskyexperience.co.uk/

  • Tuesday 4 July
    • 09:00 → 11:10
      Parallel - Accelerator Lecture Theatre 3 (Appleton Tower)

      Lecture Theatre 3

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Peter Williams (STFC Daresbury Laboratory & Cockcroft Institute)
    • 09:00 → 11:00
      Parallel - Detector: Silicon Tracking Detector Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Attilio Andreazza (INFN and Università di Milano), Harald Fox (Lancaster University), Prof. Meng Wang (Shandong University), Zhijun Liang (IHEP Beijing)
    • 09:00 → 11:20
      Parallel - Physics: Higgs and Top Lecture Theatre 2 (Appleton Tower)

      Lecture Theatre 2

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Yaquan Fang
    • 11:00 → 11:30
      Coffee and tea break 30m
    • 11:30 → 12:50
      Parallel - Accelerator Lecture Theatre 3 (Appleton Tower)

      Lecture Theatre 3

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Peter Williams (STFC Daresbury Laboratory & Cockcroft Institute)
    • 11:30 → 12:50
      Parallel - Detector: Trigger and Data Aquisition Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Benjamin Wynne (University of Edinburgh), Dr Stewart Martin-Haugh (STFC)
    • 11:30 → 13:10
      Parallel - Physics: Flavour Lecture Theatre 2 (Appleton Tower)

      Lecture Theatre 2

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Yiming Li (IHEP)
    • 13:00 → 14:00
      Lunch 1h Concourse (Appleton Tower)

      Concourse

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE, UK
    • 14:00 → 15:40
      Parallel - Accelerator Lecture Theatre 3 (Appleton Tower)

      Lecture Theatre 3

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Yuhui Li
    • 14:00 → 16:00
      Parallel - Detector: Calorimeter Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Iacopo Vivarelli (University of Sussex), Yong Liu (Institute of High Energy Physics, Chinese Academy of Sciences (CN))
      • 14:00
        CALICE SiW-ECAL beam tests in 2022 - results and outlook 20m
        Speaker: Yuichi Okugawa (Universite Paris Saclay)
        CEPC_EU_Okugawa.pdf
      • 14:20
        SDHCAL for circular colliders (15 + 5) 20m
        Speaker: Prof. Imad Laktineh (Lyon University IP2I de Lyon)
        SDHCAL-CC.pptx
      • 14:40
        CERN beamtests with CALICE scintillator-based ECAL+HCAL prototypes (15+5) 20m
        Speaker: Tatsuki Murata (ICEPP, Tokyo University )
        CEPC_EU_tatsuki.pdf
      • 15:00
        Overview of fibre-based dual readout calorimeter: activities and highlights (15+5) 20m
        Speakers: Andrea Pareti (University and INFN Pavia), Andrea Pareti (INFN and Università di Pavia)
        FiberDRCalorimeters_APareti.pdf
      • 15:20
        Overview of crystal-based dual readout calorimeter: activities and highlights (15+5) 20m
        Speaker: Flavia Cetorelli (Milano Bicocca)
        SCEPCal_IDEA_040723_v1.pdf
    • 14:00 → 15:40
      Parallel - Physics: BSM Lecture Theatre 2 (Appleton Tower)

      Lecture Theatre 2

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Prof. Bruce Mellado (University of the Witwatersrand), Rebeca Gonzalez Suarez (Uppsala University), Xuai Zhuang
      • 14:00
        FCC BSM overview 25m
        Speaker: Giacomo Polesello
        cepc_edinburgh.pdf
      • 14:25
        Global Fits at CEPC 25m
        Speaker: Jiayin Gu (Fudan University)
        ees21.pdf
      • 14:50
        SUSY, Dark Matter and Dark Sector at CEPC 25m

        During this presentation, I will provide a concise overview of the CEPC's recent advancements in SUSY, dark matter, and dark sector research.

        Speaker: Jia Liu (Peking University)
        2023-07-04-CEPC-Edinburgh-JiaLiu.pdf
      • 15:15
        Long-Lived Particles at CEPC 25m
        Speaker: Kechen Wang
        LLPs_eeColliders_v9.pdf
    • 15:40 → 16:10
      Coffee and tea break 30m Concourse (Appleton Tower)

      Concourse

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
    • 16:10 → 18:05
      Parallel - Accelerator Lecture Theatre 3 (Appleton Tower)

      Lecture Theatre 3

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Zusheng Zhou
    • 16:10 → 17:50
      Parallel - Detector: Calorimeter Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Iacopo Vivarelli (University of Sussex), Yong Liu (Institute of High Energy Physics, Chinese Academy of Sciences (CN))
      • 16:10
        LAr calorimeters for future colliders (15+5) 20m
        Speakers: Nikiforos Nikiforou, Nikiforos Nikiforou (CERN)
        LArForFutureCollidersCEPCworkshop.pdf

        Contribution from zoom, apologies in advance for not being able to join you in person!

      • 16:30
        HGC crystal ECAL: hardware development activities and highlights (15 + 5) 20m
        Speakers: Fangyi Guo (Institute of High Energy Physics, CAS), Dr Fangyi Guo (Institute of High Energy Physics, Chinese Academy of Science)
        CrystalECALBeamTest_CEPCWS2023EU.pdf
      • 16:50
        HGC crystal ECAL: software development progress and highlights (15+5) 20m
        Speaker: Yang Zhang (Institute of High Energy Physics, Chinese Academy of Science)
        20230704_Reconstruction software.pdf
      • 17:10
        Glass scintillator calorimeter R&D activities: simulation, glass synthesizing and beam test (15+5) 20m
        Speaker: Sen QIAN
        GS-Research progress-0704-V2.0-S.pdf
    • 16:10 → 17:50
      Parallel - Physics: BSM Lecture Theatre 2 (Appleton Tower)

      Lecture Theatre 2

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Prof. Bruce Mellado (University of the Witwatersrand), Rebeca Gonzalez Suarez (Uppsala University), Xuai Zhuang
      • 16:10
        Precise calculations of electroweak phase transition dynamics 20m
        Speaker: Fapeng Huang
        EWPT_CEPC_brief.pdf
      • 16:30
        Triangle Singularity and New Physics 20m
        Speaker: Dr Yugen Lin (IHEP，CAS)
        TS_BSM Yugen Lin.pdf
      • 16:50
        Production of a 95~GeV scalar in association with a $Z$-boson at e+e- colliders 20m

        The Circular Electron-Positron Collider (CEPC) is expected to operate at center-of-mass energies of 240–250 GeV to produce the Standard Model Higgs boson and make precise measurements. This will also allow for the production of additional lighter scalars. Following the excesses seen at the LHC around $m_S \approx 95$ GeV, we explore the feasibility of a singlet scalar $S$ in a 2HDM+$S$ parameter space {\it via} $e^+e^- \to ZS$ using missing-mass measurement technique, where $Z$-boson decays to either of muon or electron pairs. A study of the parameter space allowed by the LHC data will be detailed. A multi-variate analysis will be shown using machine learning methods, in addition with effects of polarized $e^\pm$ beams.

        Speaker: Mukesh Kumar (University of the Witwatersrand)
        cepc2023_mk.pdf
      • 17:10
        Searching for Low-Mass Resonances at the LHC 20m

        In light of the hints for a new scalar at the LHC at 95 GeV, I present an analysis of low-mass WW searches. In particular, a scalar SU(2) triplet is a possible candidate. In this case, one predicts a charged Higgs boson, nearly degenerate in mass, whose properties could be studied with high precision at a future e+e- collider like CEPC.

        Speaker: Guglielmo Coloretti (University of Zurich (UZH))
        Edinburgh_conference_final.pdf
      • 17:30
        Light Higgs bosons at the CEPC 20m

        We discuss the phenomenology of light Higgs bosons at the CEPC. We focus on a Higgs boson at $\sim 95$ GeV, as suggested by recent ATLAS and CMS searches. Such a scenario can be tested in two ways at CEPC: 1) via precision measurements of the $h_{125}$; 2) via direct production of the $h_{95}$. We demonstrate that these measurements are crucial to determine the characteristics of the BSM Higgs sector.

        Speaker: Sven Heinemeyer (IFT/CSIC (Madrid))
        sven.pdf
    • 19:00 → 22:00
      Social Event: Conference dinner and Group photo Playfair Library (Old College )

      Playfair Library

      Old College

      Old College, South Bridge, Edinburgh EH8 9YL, United Kingdom

      King and Queen coronation visit to Edinburgh:
      https://www.gov.scot/publications/king-and-queen-visit-to-edinburgh-july-2023-events/

      Edinburgh open top bus tours:
      https://edinburghtour.com/

      Go up Arthur's seat.

      Whisky experience:
      https://www.scotchwhiskyexperience.co.uk/

  • Wednesday 5 July
    • 09:00 → 10:40
      Parallel - Detector: MDI Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: Haoyu Shi (IHEP, CAS)
    • 10:40 → 11:10
      Coffee and tea break 30m Concourse (Appleton Tower)

      Concourse

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE, UK
    • 11:10 → 12:50
      Joint Physics and Detector: Simulation/Computing/Software/Performance Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Conveners: Liza Mijovic (University of Edinburgh), Prof. Shengsen Sun (IHEP, CAS), Prof. Weidong Li (IHEP, Beijing)
    • 11:10 → 12:50
      Parallel - Accelerator Lecture Theatre 3 (Appleton Tower)

      Lecture Theatre 3

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE
      Convener: jie Gao (Institute of High Energy Physics)
      • 11:20
        CEPC parameters and its possible applications to multidisciplinary science 30m
        Speaker: Yuhui Li
        CEPC applications.pptx
      • 11:50
        CEPC Industrialization Preparation and DeepC Documentation System 30m
        Speaker: Dr Song Jin (Institute of High Energy Physics, Chinese Academy of Sciences)
      • 12:20
        Introduction on ATF2/3 status and collaborations 30m
        Speaker: Angeles Faus-Golfe
    • 12:50 → 14:00
      Lunch 1h 10m Concourse (Appleton Tower)

      Concourse

      Appleton Tower

      11 Crichton St, Newington, Edinburgh EH8 9LE, UK
    • 14:00 → 18:00
      Social Event: Free for informal social events or meetings

      King and Queen coronation visit to Edinburgh:
      https://www.gov.scot/publications/king-and-queen-visit-to-edinburgh-july-2023-events/

      Edinburgh open top bus tours:
      https://edinburghtour.com/

      Go up Arthur's seat.

      Whisky experience:
      https://www.scotchwhiskyexperience.co.uk/

  • Thursday 6 July
    • 09:00 → 10:40
      Plenary Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      https://ed-ac-uk.zoom.us/j/89714782154 (Passcode: nYE11fb0)

      Convener: jie Gao (Institute of High Energy Physics)
      • 09:00
        Input from the US 20m
        Speaker: Prof. Hitoshi Murayama (University of California Berkeley)
        Hitoshi_CEPC Edinburgh 2023.pdf
      • 09:20
        Input from ECFA 20m
        Speaker: Prof. Patricia Conde Muíño ( IST (Instituto Superior Técnico) & LIP)
        efca_conde.pdf
      • 09:40
        Panel discussions 1h
        Speakers: Prof. Hitoshi Murayama (University of California Berkeley), Prof. John Womersley (University of Edinburgh), Prof. Patricia Conde Muíño (IST (Instituto Superior Técnico) & LIP), Prof. Shoji Asai (University of Tokoyo), Prof. Tao Han (University of Pittsburgh), Prof. Yifang Wang (Institute of High Energy Physics, Chinese Academy of Science)
        Shoji_Asai_20230706.pdf
        TaoHan_2023-panel.pdf
    • 10:40 → 11:00
      Coffee and tea break 20m Concourse (Appleton Tower)

      Concourse

      Appleton Tower
    • 11:00 → 13:10
      Plenary Lecture Theatre 1 (Appleton Tower)

      Lecture Theatre 1

      Appleton Tower

      https://ed-ac-uk.zoom.us/j/89714782154 (Passcode: nYE11fb0)

      Convener: Prof. Haijun Yang (Shanghai Jiao Tong University)
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