The 2022 International Workshop on the High Energy Circular Electron Positron Collider

24 Oct 2022, 08:00 → 28 Oct 2022, 23:59 Asia/Shanghai

A214 (IHEP)

Shan Jin (ihep) , Jianchun Wang (IHEP)

The 2022 international workshop on the high energy Circular Electron-Positron Collider (CEPC) will take place between October 24-28, 2022. The workshop will be operated mainly in online mode, hosted jointly by the Nanjing University and IHEP. Meeting rooms will be provided at IHEP for local participants.

The workshop intends to gather scientists around the world to study the physics potentials of the CEPC, pursue international collaborations for accelerator and detector optimization, 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. Furthermore, industrial partnership for technology R&Ds and industrialization preparation of CEPC-SppC will be explored.

The workshop program consists of plenary sessions, parallel sessions and poster sessions. Presentations include conveners' selection from the abstract submissions and invitational ones. The workshop encourages participation, especially from graduate students and junior postdocs. Top posters will receive awards, selected through a vote by the SPC members, the conveners and the local organizers.

Uploaded Documents Agenda.pdf ClickableProgram.pdf

Monday, 24 October

10:00 → 12:00 Accelerator: 1

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Jie GAO (IHEP)

10:00 Status of Super KEK B

Speaker: Makoto Tobiyama (KEK Accelerator Laboratory)

SKB-2022-CEPCOCT.pdf

10:20 CEPC collider lattice design

Speaker: Yiwei WANG (IHEP)

[Yiwei Wang 2022.10] CEPC collider ring lattice design.pdf

[Yiwei Wang 2022.10] CEPC collider ring lattice design.pptx

10:40 Orbit correction and error analysis

Speaker: Bin Wang (IHEP)

20221024_CEPC_workshop_BinWang_v3.pdf

20221024_CEPC_workshop_BinWang_v3.pptx

11:00 Beam-beam simulations for CEPC all energy modes and impedance effects

Speaker: Yuan Zhang (IHEP, Beijing)

2022-10-CEPC-BB-zhangyuan.pptx

11:20 CEPC Booster and damping ring

Speaker: Dou WANG (IHEP)

CEPC booster & damping ring-v1.pptx

11:40 CEPC Linac injector design status

Speaker: Cai Meng (高能所)

CEPC Linac injector design status.pdf

CEPC Linac injector design status.pptx

10:00 → 12:00 CIPC: 1

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Convener: Dr Song Jin (IHEP，CAS)

10:00 Development of Equipment for Accelerator at HE Racing

Speaker: 占军 张 (IHEP)

锐新-Development of Equipment for Accelerator at HE Racing20221024-song.pdf

10:20 宁夏东方钽业股份有限公司超导铌材射频超导腔加工及产业化

Speaker: 明伦 陈 (N)

宁夏超导公司报告221024.pdf

10:40 650MHz/800kW高效率速调管国力研制情况

Speaker: 少哲 王 (昆山国力大功率器件工业技术研究院有限公司)

CIPC分会-650MHz800kW高效率速调管国力研制情况-王少哲.pdf

11:00 超导高频相关部件研究进展汇报

Speaker: 李荣 (安徽华东光电技术研究所有限公司)

CIPC研讨会—安徽华东光电技术研究所有限公司汇报材料-20221024.pdf

11:20 真空技术突围之路 慧宇践行中国制造2025

Speaker: 毅 董 (沈阳慧宇真空技术有限公司)

沈阳慧宇真空技术有限公司新高能所(1).pptx

11:40 CEPC 0.5m单孔径超导四极实验磁体加工制造

Speaker: 伟 邹 (合肥科烨电物理设备制造有限公司)

0.5m超导四级磁体QD0短样机制造-2022.10.21.pptx

10:00 → 12:00 Higgs: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

10:00 Two-Loop Electroweak Corrections with Fermion Loops to e^+e^- -> ZH

Speaker: Qian Song (University of Pittsburgh)

CEPC_workshop.pdf

10:20 Complete two-loop electroweak corrections to e+e− → HZ

Speaker: Xin Guan (Peking Univerisy)

2022CEPC_v3.pdf

10:40 Search for H-->aa-->4b exotic decays of SM Higgs with CEPC (SnowMass White Paper)

Speaker: Xuliang Zhu (Shanghai Jiao Tong University)

CEPC-workshop-exoHiggs-xuliang.pdf

11:00 Probing light quark Yukawa couplings through jet angularities in Higgs boson decay

Speakers: Bin Yan (IHEP) , Bin Yan (Los Alamos National Lab)

Higgs_shape.pdf

11:20 Electroweak Phase Transition in Exotic Higgs Decays at the CEPC

Speaker: Dr Elham E Khoda (University of Washington)

elham_CEPC_24oct2022.pdf

10:00 → 12:00 Silicon Detector: 1

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Conveners: Harald Fox (Lancaster University) , Meng Wang (Shandong University)

10:00 Status of the CEPC vertex and tracking detector R&D

Speaker: Wei WEI (高能所)

CEPC_VTX_20221024.pdf

10:30 R&D on the SOI technology for the vertex detector of CEPC Yunpeng

Speaker: Yang ZHOU (IHEP)

RD on the SOI technology_2022_CEPCworkshop.pdf

10:50 The Silicon Electron Multiplier Sensor

Speaker: Dr Mariuz Halvorsen

CEPC.pptx.pdf

11:10 Small Pitch Detector Hybridisation and Integration

Speaker: Peter Svihra (CERN)

svihra_detector_hybridisation.pdf

13:30 → 15:30 Accelerator: 2

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: wenhui huang (Tsinghua University)

13:30 Generation of pre-bunched electron beams from plasma wakefield accelerators and their applications in light sources

Speaker: Xinlu Xu (Peking University)

CEPC2022_workshop-Session01-Accelerator-XinluXu.pptx

13:50 CEPC transport lines, and timing

Speaker: 小昊 崔 (Accelerator Center)

CEPC transport & Timing.pptx

14:10 Collective effects studies in CEPC

Speaker: Na WANG (高能所)

CEPC_Workshop_Collective_WangNa_Upload.pptx

14:30 Beam cavity interactions in CEPC

Speaker: 辛天牧

Beam_Cavity_20221024_TXin.pptx

14:50 HOM studies in CEPC MDI and damping ring

Speaker: 瑜冬 刘 (高能所)

HOM_Heating_in_CEPC_MDI_and_Damping_Ring-CEPC-2022.pptx

13:30 → 15:30 CIPC

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Convener: Prof. 佳斌 王 (华侨大学)

13:30 千瓦级国产氦制冷机工程研制进展

Speaker: 熊联友

1000W 级氦制冷机研制20221022.pdf

13:45 Study on high capacity Stirling cryocooler and its application in superconducting system

Speaker: 孙大明

CIPC'2022-浙江大学&江苏克劳特低温技术有限公司.pdf

14:00 cryogenic infrastructure for superconducting accelerator at Vacree

Speaker: 学华 章 (V)

万瑞与低温20221024.pdf

14:15 Advance in artificial pinning centers of MOD-derived REBCO high temperature superconducting coated conductors

Speaker: Prof. 蔡传兵

14:30 CEPC主环双孔径二极磁铁加工制造

Speaker: 大鹏 尹 (合肥科烨电物理设备制造有限公司)

CEPC 主环双孔径二极铁样机研制进展.pdf

14:45 综合辐射监测系统在大科学装置的应用

Speaker: 张玉包

综合辐射监测系统在大科学装置的应用.pdf

15:00 辐射防护业务介绍

Speaker: 史轶君 (宜兴市诚鑫辐射防护器材有限公司)

辐射防护业务介绍（诚鑫）.pdf

15:15 聚科技之力 创未来之能

Speaker: 夏世波

合肥聚能电物理高技术开发有限公司简介&近年承担加速器领域装备研制案例V2.1.pptx

13:30 → 15:30 Higgs: 2

Zoom meeting ID/Passcode:818 8149 1831 / 967516

13:30 H->bb, cc, gg measurement at the CEPC and corresponding performance-optimization study

Speaker: 永峰 朱

Higgs.pdf

14:00 Higgs Combination at the CEPC

Speaker: Kaili Zhang (IHEP)

20221024_CEPC_Kaili.pdf

14:30 Higgs CP at CEPC

Speaker: Qiyu Sha

CEPC_International_workshop_Higgs_CP.pdf

15:00 Higgs coupling determination at the CEPC

Speakers: Jiayin Gu (Fudan University) , Jiayin Gu (Fudan University)

ees12.pdf

13:30 → 15:30 Silicon Detector: 2

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Convener: Stefano Matthias Panebianco (CEA Université Paris Saclay)

13:30 Challenges for CMOS monolithic sensors

Speaker: Walter Snoeys

CEPC_monolithic_W_Snoeys.pdf

14:30 Low gain Avalanche diode (LGAD) for 4D-tracking

Speaker: Marco Ferrero (INFN-TO)

CEPC_2022_v2.pptx

15:00 Review of 3D pixel technology

Speaker: Prof. Gian-Franco Dalla Betta

Talk_GFDB.pdf

15:30 → 16:00 Coffee break

16:00 → 18:00 Accelerator: 3

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Angeles Faus-Golfe

16:00 Highlights of eeFACT2022

Speaker: Maria Enrica Biagini (INFN-LNF)

Biagini_eeFACT22.pdf

16:20 CEPC accelerator status

Speaker: Jie GAO (IHEP)

CEPC Accelerator TDR Status Overview-workshop-_JGao-2022.-v2.pdf

16:40 FCCee lattice design

Speaker: Michael Hofer (CERN)

MH_FCCee_optics.pdf

17:00 Status of the high-energy booster

Speaker: Antoine Chance (CEA)

17:20 CEPC Booster DA study

Speaker: Daheng JI (高能所)

CEPC Booster DA Study.pptx

17:40 Correction and tuning

Speaker: Jacqueline Keintzel (CERN)

20221024_TomasKeintzel_CEPCWS_FCCeeTuning.pdf

16:00 → 18:00 CIPC: 3

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Convener: Prof. 孙大明

16:00 CEPC项目过程虚拟仿真研究进展

Speaker: 佳斌 王 (华侨大学)

20221024-CEPC工程项目供应链仿真算法研究.pdf

16:15 复杂环境下摄影测量的应用及发展趋势

Speaker: 凯 朴 (深圳中核普达测量科技有限公司)

复杂环境下摄影测量的应用及发展.pdf

16:30 隧道环境自主运维机器人的关键技术

Speaker: 瑞岩 郭 (N)

CIPCsession-隧道环境自主运维机器人的关键技术-郭瑞岩.pdf

16:45 基于激光与影像技术的高精度准直测量方法研究

Speaker: 邹进贵

受限空间测站定向方法研究.pdf

17:00 粒子治疗设备部件的标准化探索

Speaker: 汤桐生 (chnkelin)

粒子治疗设备部件制造的标准化探索 2022.10.24 V1.pdf

17:15 HL-LHC项目中新型斜螺线管超导磁体在八马的进展

Speaker: 新宇 邹 (苏州八匹马超导科技有限公司)

HL-LHC项目中新型斜螺线管超导在八马的进展.pptx

17:30 二代高温超导带材实用性研究进展

Speaker: 广宇 姜 (上海超导科技股份有限公司)

SSTC_CIPC2022.pdf

17:45 四川宇天真空介绍

Speaker: 陈本富

宇天真空介绍1.pptx

16:00 → 18:00 Higgs

Zoom meeting ID/Passcode:818 8149 1831 / 967516

16:00 BSM Higgs production at CEPC: theory status

Speaker: Masashi Aiko (Osaka University)

CEPC_Aiko.pdf

16:30 Discovering new physics through precision measurements at CEPC

Speaker: Kei Yagyu

2022-10-CEPC_Yagyu.pdf

17:00 Light Higgs bosons at CEPC

Speaker: Thomas Biekoetter (DESY)

biekoetter.pdf

17:30 Extended scalar sectors and DM at e+e- colliders

Speaker: Michal Iglicki

iglicki-cepc22.pdf

16:00 → 18:00 Silicon Detector: 3

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Conveners: Kazuyoshi Akiba (IF-UFRJ) , Massimo Caccia (INFN-MI)

16:00 DART28 - radiation tolerant high speek links

Speaker: Dr Stefan Biereigel

Biereigel_cepc_readout_challenges_20221024.pdf

16:20 On-detector powering: current technologies and ongoing R&D

Speaker: Dr Giacomo Ripamonti

Ripamonti_On_detector_power_October2022.pptx

16:40 ALICE ITS3 - bent, wafer-scale CMOS detector

Speaker: Dr Alexander Kluge

Kluge_20221024ITS3_presentation.pptx

17:00 MightyPix: A HV-CMOS Pixel Sensor for LHCb Mighty Tracker

Speaker: Ivan Peric (Karlsruhe Institute of Technology)

MightyPix_IvanPeric_forcepc_nt.pptx

17:20 Operational Experience and Performance of the Belle II Pixel Detector

Speaker: Dr Arthur Bolz

221024_PXDPerfAtCEPC2022.pdf

17:40 Belle II VTX-DMAPS upgrade

Speaker: Prof. Jerome Baudot (IPHC-CNRS)

belleIIvtxUpgrade-JBaudot-cepc2022.pdf

20:00 → 21:30 Plenary: 1

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Shan Jin (ihep)

20:00 Welcome

Speaker: Prof. Yifang Wang

20:10 Theory vision

Speaker: Prof. Hitoshi Murayama (University of California, Berkeley)

CEPC 2022.pdf

20:50 Status of the CEPC

Speaker: Prof. Guimaraes de Costa Joao (IHEP, CAS)

20221024-CEPC-Workshop-goodR.pdf

21:30 → 22:00 Coffee break

22:00 → 23:30 Plenary: 2

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Yuanning Gao (Peking University)

22:00 Status and perspectives of the FCC

Speaker: Michael Benedikt

221024_FCC-Status-Perspectives.pptx

22:30 ILC and CLIC as future Higgs factories

Speaker: Benno List (CERN)

CEPC2022-List.pptx

23:00 Global picture of other collider candidates

Speaker: Tao Han (Univ. of Pittsburgh)

2022-FutureC.pdf

Tuesday, 25 October

10:00 → 12:00 Accelerator: 4

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Prof. Younguk Sohn (Pohang University of Science and Technology)

10:00 Highlights of TTC Meeting of 2022

Speaker: Eiji Kako (KEK)

Kako CepC2022 Highlights of TTC meeting at Aomori, 2022 Oct. 25.pdf

10:20 Klystrons and RF power sources distributions

Speaker: Zusheng Zhou (IHEP)

Klystrons and RF power sources distributions.pptx

10:40 CEPC SRF cavities studies

Speaker: Peng Sha (IHEP )

20221025-CEPC SRF Cavity.pptx

11:00 CEPC collider and booster cryomodule design and studies

Speaker: Ruixiong Han

CEPC-Cryomodule-2022-10-25.pdf

11:20 CEPC LLRF system design and developments

Speaker: Xinpeng MA (高能所)

CEPC LLRF 2022.pptx

11:40 CEPC Cryogenic system design and R&D

Speakers: Dr Mei Li, Prof. Rui Ge (IHEP)

CEPC Cryogenic System Design and R&D.pptx

10:00 → 12:00 Calorimeter: 1

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Convener: Gabriella Gaudio (INFN Pavia)

10:00 A novel high granularity crystal electromagnetic calorimeter

Driven by the physics program of precise measurement of properties of the Higgs boson, the W and Z bosons, as well as the top quark, future lepton colliders require unprecedented jet energy resolution on their calorimetry systems. Based on the particle- ow paradigm, a novel highly gran- ular crystal electromagnetic calorimeter (ECAL) with excellent three-dimensional spatial resolu- tion as well as good energy and time resolution is proposed to address major challeng es from jet reconstruction and to achieve the optimal EM energy resolution of around 2 − 3 %/ E(GeV ) with the homogenous structure. Comprehensive R&D e orts have been carried out to evaluate the potential and requirements of the crystal ECAL from sensitive detection units to the full sub- detector system. e requirements on crystal candidates, photon sensors, and readout electronics are parametrized and quanti ed in Geant4 full simulation. Hardware R&D activities on the crystal and silicon photomultipliers (SiPMs) are performed to characterize the typical response of basic de- tector units and to improve the simulation results. e physics performance of the crystal ECAL has been studied with the particle- ow algorithm “ArborPFA” which is being optimized. More- over, the development of small-scale detector modules is underway for future beam tests to study the performance for EM showers.

Speaker: Baohua Qi (IHEP)

20221025_A novel high granularity crystal electromagnetic calorimeter.pdf

10:15 Development and beamtest of the CALICE PFA Calorimeter Prototypes

A highly granular electromagnetic calorimeter has been designed within the CALICE collabora- tion for precision measurements of Higgs and electroweak physics at future lepton collider ex- periments, including the Circular Electron Positron Collider (CEPC). Scintillator strips and silicon photomultipliers (SiPMs) are instrumented as sensitive layers and tungsten-copper alloy plates as absorber. Scintillator strips are individually wrapped with ESR foil and directly coupled with SiPMs. A prototype with 32 sampling layers and over 6700 channels (around 600 × 600 × 400 mm3 in dimensions) has been constructed and commissioned in 2020, followed by long-term cosmic-ray tests in 2021 for quantitative studies on the key performance. ere will be a dedicated beam test at CERN SPS in October 2022. is talk will cover key aspects in the prototype development, com- missioning as well as selected results of cosmic ray tests. e latest status on the CERN beam test will also be presented.

Speaker: Yunlong Zhang (University of Science and Technology of China)

CEPCALO-Beamtest-20221025.pdf

10:45 Research progress of glass scintillator of HCAL

Based on the particle- ow paradigm, a novel hadronic calorimeter (HCAL) with high granularity is proposed to address major challenges from precision measurements of jets at future lepton collider experiments, such as the Circular Electron Positron Collider (CEPC). Compared with the baseline designs, a new design scheme based on the glass scintillator (GS-HCAL) aims for further signif- icant improvements of the hadronic energy resolution as well as the particle- ow performance, especially in the low energy region (typically below 10 GeV for major jet components), with a notable increase of the energy sampling fraction and hadronic response compensation due to its high density and doping of neutron-sensitive elements. e R&D group has been established to promote the investigation of high-performance glass scintillators with a density up to 6 g/cm3 and a light yield of 1500 ph/MeV. Simultaneously, physics benchmark potentials of GS-HCAL in an optimized setup are explored in the CEPC so ware framework and standalone simulation. In this contribution, the latest R&D progress of glass scintillators and optimization of key parameters will be introduced.

Speaker: Peng Hu (IHEP)

2022_CEPC_Workshop.pdf

11:00 Cluster timing and leakage in time at the CEPC baseline Calorimeter

We discuss the time spectra of showers from photons, muons, and charged pions, simulated in the CEPC electromagnetic calorimeter (ECAL). We present an algorithm for timing reconstruc- tion in highly granular calorimeters (HGC). Assuming the intrinsic hit time resolution measured by the CMS collaboration is accessible, the particle Time-of-Flight (ToF) can be measured with a resolution of 5 ∼ 20 ps for electromagnetic (EM) showers and 80 ∼ 160 ps for hadronic show- ers above 1 GeV. e ToF resolution depends linearly on the timing resolution of a single silicon sensor and improves statistically with increasing incident particle energy. A clustering algorithm that vetos isolated hits improves ToF resolution. In addition, hadronic showers include extremely slow components. In Z->qq events, there is around 1% (10%) ECAL (HCAL) energy deposited a er one microsecond, which may leak out from the triggering window of the corresponding event and pile-up into the a er events.

Speaker: Yuzhi Che (IHEP)

2022CEPCWorkShop.pdf

11:15 Study on the Dynamic Range of SiPMs with Large Pixel Number

The future Circular Electron-Positron Collider (CEPC) is a large-scale experimental facility, which aims to accurately measure the Higgs boson, electroweak physics and avor physics. For the detec- tor system in CEPC, a highly granular crystal electromagnetic calorimeter is proposed to achieve an EM energy resolution of less than 3%. It is a homogenous structure with long crystal scintilla- tor bar as active material. e energy deposition range in one crystal bar is about 500keV ̃10GeV. SiPM, as the preferred photon detector in crystal bar ECAL, should cover a dynamic range of at least 50000 photons. e response calibration for SiPMs with such a large dynamic range is chal- lenging. We have developed an experiment which used laser and PMT as light source and scaler respectively. By adjusting the bias voltage, we expanded the linear region of the PMT to cover the whole response range of SiPMs. e nal response curves are reasonable. We have also built a simulation model to describe them. Improvements to this experiment are still ongoing, including design of large dynamic range PMT, optimization of SiPM electronics and light source.

Speakers: Zhiyu Zhao (SJTU/TDLI) , Zhiyu Zhao (TDLI/SJTU)

20221026_CEPCWS_ZhiyuZhao.pdf

10:00 → 12:00 Flavor physics: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Liming Zhang (Tsinghua University) , Lingfeng Li (Brown University) , Lorenzo Calibbi (Nankai University) , Tao Liu (The Hong Kong University of Science and Technology)

10:00 Experimental overview

Speaker: Yuehong Xie (Central China Normal University)

Flavour-Experiment-CEPC.pdf

10:30 The B anomalies and how to test them at future colliders

Speaker: Wolfgang Altmannshofer (UC Santa Cruz)

altmannshofer_CEPC.pdf

11:00 Exclusive Ds* weak decay and the experiment potential

Speaker: Shan Cheng (Hunan University)

Dss_weakdecay-scheng.pdf

11:30 Hadron spectroscopy and exotic states

Speaker: Feng-Kun Guo (ITP, CAS)

13:30 → 15:30 Accelerator: 5

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Anton Bogomyagkov (BINP)

13:30 CEPC magnets design and R&D status in collider ring

Speaker: Mei Yang

20221025-CEPC magnets design and R&D status in collider ring.pptx

13:50 CEPC magnets design and R&D status in booster ring

Speaker: Wen Kang (Accelerator Centor, IHEP)

The CEPC Booster Magnets R & D 2022-10.pptx

14:10 SC Quadrupoles design and R&D stuatus for CEPC

Speaker: Yingshun Zhu (高能所)

Superconducting quadrupoles design and R&D status for CEPC.pdf

Superconducting quadrupoles design and R&D status for CEPC.pptx

14:30 Magnets power sources and electro-magnetic seperators study status for CEPC

Speaker: Bin Chen (IHEP)

20221025_Magnet Power supply and  Electro-Magnetic Separator study status for CEPC .pptx

14:50 CEPC Injection/extraction system studies

Speaker: Jinhui Chen (Institute of High Energy Physics)

CEPC Injectionextraction system studies-cjh-20221025.pptx

13:30 → 15:30 Calorimeter: 2

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Convener: jean-claude Brient (LLR -IPP CNRS)

13:30 Invited talk: ECAL overview 2

Speaker: Vincent Boudry (LLR - École polytechnique / CNRS-IN2P3)

2022-10-25_SiW-ECAL-Overview_CEPCWS.pdf

14:00 SDHCAL: Present and future (Invited Talk)

Speakers: Imad LAKTINEH (IPNL) , Dr Imad Laktineh (Institut de Physique Nucléaire de Lyon (IPNL))

SDHCAL-CEPC-2022.pptx

14:30 Invited talk: CALICE Scintillator-based HCAL overview

Speaker: Katja Krueger (DESY)

CEPC_AHCALoverview_20221025.pdf

15:00 Invited talk: dual-readout calorimeter overview

Speaker: Seungkyu Ha (Yonsei University)

CEPCWorkshop_DRC_SKHa_v5.pdf

13:30 → 15:40 Flavor physics: 2

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Liming Zhang (Tsinghua University) , Lingfeng Li (Brown University) , Lorenzo Calibbi (Nankai University) , Tao Liu (The Hong Kong University of Science and Technology)

13:30 Exploiting time evolution in rare decays of Bd and Bs mesons

Speaker: Sébastien Descotes-Genon (IJCLab (CNRS/Université Paris-Saclay))

slides_beijing_2_2022.pdf

14:00 Explanation of W boson mass anomaly and flavor physics in a model with extra U(1) gauge symmetry

Speaker: Takaaki Nomura (Sichuan University)

Nomura1025.pdf

14:30 Principle of maximum conformality and its application to the determination of QCD coupling

Speaker: Jian-Ming Shen (Hunan University)

PMC_alphas_sjm.pdf

15:00 Semileptonic b Decays at Future Z Factories

Speaker: Xuhui Jiang (The Hong Kong University of Science and Technology)

Semileptonic b Decays at Future Z Factories.pdf

15:20 Prospects for B0(s)→π0π0 and B0(s)→ηη modes and corresponding CP asymmetries at Tera-Z

Speaker: Yuexin Wang

Yuexin_BToPiPi_20221025.pdf

15:30 → 16:00 Coffee break

16:00 → 18:00 Accelerator: 6

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Maria Enrica Biagini (INFN-LNF)

16:00 Highlights of Snowmass AF on Higgs factory

Speaker: Frank Zimmermann (CERN)

16:20 Status of Collider and Booster Magnets for FCC-ee

Speaker: BAUCHE JÉRÉMIE (CERN - European Orgnization for Nuclear Research)

2022-10-25 - CEPC WS - FCC-ee Magnets - JBauche.pptx

16:40 CEPC vacuum system design and R&D status

Speaker: Yongsheng MA (高能所)

CEPC vacuum system design and R&D status.pptx

17:00 CEPC Instrumentation development status

Speaker: Yanfeng Sui (高能所)

CEPC_beam_instrumentation_International workshop_2022-v3.pptx

17:20 CEPC SR application study status

Speaker: Yongsheng HUANG

16:00 → 18:00 Calorimeter: 3

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Convener: Hwi Dong YOO (Yonsei University)

16:00 Invited talk: dual-readout calorimeter - TB analysis and simulation

Speaker: Andreas Loeschcke Centeno (University of Sussex)

CEPC_Workshop_20221025.pdf

16:30 Particle Flow for dual-readout calorimeter

Speaker: Adelina DOnofrio (Nanjing University)

CepC_ws2022_ADOnofrio.pdf

16:45 The CMS High Granularity Calorimeter for the High Luminosity LHC

Speaker: Huaqiao ZHANG (IHEP)

HGCal_CEPCworkshop_HuaqiaoZhangV2.pdf

17:00 Invited talk: CMS and LHCb Calorimeters Run3 and Phase-II Upgrades status and plans

Speaker: Eduardo Picatoste (University of Barcelona)

CMS and LHCb Calorimeters Run 3 operations and Phase-2 upgrades_rev2.pdf

17:30 Invited talk: The current status and plans of the ALICE and ATLAS calorimeters

Speaker: Hua Pei (Central China Normal University)

CEPC_ALICE-ATLAS_v3.pdf

16:00 → 18:30 Flavor physics: 3

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Liming Zhang (Tsinghua University) , Lingfeng Li (Brown University) , Lorenzo Calibbi (Nankai University) , Tao Liu (The Hong Kong University of Science and Technology)

16:00 Overview on the CEPC flavor white paper

Speaker: Anson KWOK (HKUST)

Overview_on_CEPC_Flavour_White_Paper.pdf

16:30 Theoretical overview on flavor at FCC-ee

Speaker: Jernej Kamenik (Jozef Stefan Institute)

Kamenik_FCC-ee_Flavour_CEPC_2022.pdf

17:00 Flavor-violating axion-like particles

Speaker: Jure Zupan

CEPC2022_Zupan.pdf

17:30 Standard Model predictions and LFU violation in B decays

Speaker: Nico Gubernari

Precise_SM_predictions_for_B_decays.pdf

18:00 Lattice QCD and Flavor Physics

Speaker: Andreas Kronfeld (Fermilab)

cepc.pdf

Wednesday, 26 October

10:00 → 12:00 Accelerator: 7

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Eiji Kako (KEK)

10:00 Accelerator activities in Korea

Speaker: Dr. Garam Han

(20221026) Accelerator activities in Korea.pdf

10:20 CEPC Linac injector R&D status

Speaker: Jingru Zhang (IHEP)

CEPC_WS2022_Linac_Tech.pptx

10:40 Bunching system design and development for linac injector

Speaker: Ouzheng Xiao

Bunching system design and development for Linac injector.pptx

11:00 CEPC control system design and studies

Speaker: Gang Li (IHEP)

CEPC control system design and studies-2022-10-26.pptx

11:20 CEPC Feedback systems studies

Speaker: Junhui Yue (Institute of High Energy physics)

CEPC Feedback systems studies.pptx

10:00 → 12:00 EW and tt: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Alessandro Vicini (University of Milano) , Marcel Vos (IFIC (UVEG/CSIC) Valencia) , Zhijun Liang (IHEP) , Xiaohu SUN (Peking University)

10:00 Top mass measurement at CEPC using the threshold method

Speaker: Zhan Li (IHEP)

2022.10.26CEPCpre.pdf

10:25 Probing BSM effects in e+ e- -> WW with machine learning

Speaker: Shengdu Chai (复旦大学)

machine_learning_on_eeww_CEPC.pdf

10:50 Snowmass SMEFT fits

Speaker: Yong Du (ITP CAS)

CEPC2022-top-YongDu.pdf

10:00 → 12:06 Gaseous detector: 1

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Conveners: Shikma Bressler (W) , Francesco Grancagnolo (INFN-Lecce) , imad laktineh (IPNL) , Huirong Qi (Institute of High Energy Physics, CAS)

10:00 Updated progress and status of the high precision TPC R&D for CEPC

Speakers: Dr Huirong Qi (Institute of High Energy Physics, CAS) , Xin She (高能所)

CEPC_TPC_IHEP__Huirong_20221026.pdf

10:18 Status of the low power consumption ASIC FEE for TPC detector

Speaker: Zhi Deng (清华大学)

CEPC-TPC-ROC_v1.pdf

10:36 Updated progress of the high precision fast time detector: MRPC

Speaker: Wang Yi (Tsinghua University)

MRPC technology for TOF.pptx

10:54 Progress of ILD-TPC development in Japan

Speaker: Yukihiro Kato (Kindai University)

20221026_slide.pdf

11:12 The Phase-2 upgrade of CMS Forward Muon system with GEM

Speaker: Dr Dong Hyun Kim (University of Seoul)

22Oct_CEPC_Workshop_DHKim_V1.pdf

11:30 A Large-area RWELL prototype for CEPC-DHCAL application

Speaker: Xiangqi Tian (U)

A Large-area RWELL prototype for CEPC-DHCAL Application.pdf

11:48 Involvement of Hong Kong ALTAS team on sTGC test and commissioning

Speakers: Mr Ho TSE Wan, HIN KWONG LEUNG (The Chinese University of Hong Kong)

NSW_HKTEAM_26OCT2022_CEPC Workshop.pdf

13:30 → 15:30 Accelerator: 8

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: wenhui huang (Tsinghua University)

13:30 Super Tau Charm status at BINP

Speaker: Anton Bogomyagkov (BINP)

Bogomyagkov-ctau-CEPC-2022.pptx

13:50 CEPC mechanical system and supports design status

Speaker: Minxian Li

2022 CEPC mechanics system-lmx.pptx

14:10 CEPC vacuum chamber studies

Speaker: Pengcheng Wang

14:30 Radiation and protection issue studies in CEPC

Speaker: Guangyi Tang (IHEP)

cepc RP2022.pdf

CEPC RP2022_v2.pptx

14:50 CEPC Dump system design studies

Speaker: Zhongjian Ma

CEPC Dump system design studies-mazhj.pptx

15:10 SppC Lattice design and compatibility

Speakers: Haocheng Xu (IHEP) , Yiwei WANG (IHEP)

SPPC_lattice_design_CEPCworkshop_2022.pdf

SPPC_lattice_design_CEPCworkshop_2022.pptx

13:30 → 15:35 EW and tt: 2

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Alessandro Vicini (University of Milano) , Marcel Vos (IFIC (UVEG/CSIC) Valencia) , Zhijun Liang (IHEP) , Xiaohu SUN (Peking University)

13:30 Running top mass measure at lepton collider

Speaker: Zhuoni Qian (Hangzhou Normal University)

CEPC2022.pdf

13:55 MC@NLO for e+e- colliders

Speaker: Giovanni Stagnitto (University of Zurich)

stagnitto_CEPC22.pdf

14:20 AMFlow progresses

Speaker: Xiao Liu (University of Oxford)

14:45 Running quark masses at future e+e- colliders

Speaker: Javier Aparisi (IFIC)

CEPC22_bmass.pdf

13:30 → 15:50 Gaseous detector: 2

Zoom meeting ID/Passcode:836 9483 9089 / 434662

Conveners: Shikma Bressler (W) , Francesco Grancagnolo (INFN-Lecce) , imad laktineh (IPNL) , Huirong Qi (Institute of High Energy Physics, CAS)

13:30 The IDEA drift chamber

Speaker: Nicola De Filippis (Politecnico and INFN Bari)

DeFilippis_IDEA_DCH.pdf

13:48 FE and DAQ electronics for a cluster counting drift chamber

Speaker: Gianluigi Chiarello (INFN)

Chiarello_FE_DAQ.pdf

14:06 Beam test results on cluster counting

Speaker: Brunella D\'Anzi (Bari University)

DAnzi_CEPC_2022.pdf

14:24 Pixelated TPC techonolgy for the future e+e- collider

Speaker: Peter Kluit (Nikhef)

CEPC_pixelTPC_2022.pdf

14:42 Consequences of ILD strategy on the TPC R&D

Speaker: Paul Colas (CEA/Irfu U. Paris Saclay)

NewILDstrategy.pdf

NewILDstrategy.pptx

15:00 Eco-friendly gases for the gaseous detectors

Speaker: Roberto Guida (CERN)

CEPC_International_Workshop_20221026_v0b.pptx

15:18 μRwell technique for the muon detector

Speaker: Dr Macro Poliener

Poli_Lener_CepC_26_10_2022.pdf

15:30 → 16:00 Coffee break

16:00 → 18:00 Accelerator: 9

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Makoto Tobiyama (KEK Accelerator Laboratory)

16:00 Progress on monochromatization

Speaker: Hongpeng Wang (IHEP)

16:20 BEPCII and BEPCII-U

Speaker: Huiping GENG (高能所)

BEPCIIandBEPCIIU.pptx

16:40 FCC-ee Collimation Studies

Speaker: Andrey Abramov (CERN)

FCCee-collimation.pdf

17:00 CEPC beam loss studies

Speaker: Xiaohao Cui (Accelerator Center)

CEPC beam loss.pptx

17:20 Positron optimization for FCCee by Iryna Chaivkoska IJCLab

Speaker: Yongke ZHAO (山东大学 & LAL)

20221026 - CEPC Workshop - Yongke Zhao - FCC-ee positron source optimisation.pdf

17:40 CEPC MDI issues in accelerator

Speaker: Sha BAI (高能所)

CEPC MDI20221026_v1.pptx

16:00 → 18:00 PID and other technologies: 1

Zoom meeting ID/Passcode:836 9483 9089 / 434662

16:00 Physics Requirement for the particle identification in terms of dE/dx or dN/dx for gaseous detector

Speaker: Yongfeng Zhu

PID.pdf

16:24 PID potential study at TPC: current experiments and perspective

Speaker: Ulrich Einhaus

2022_10_26_CEPC_WS_Uli.pdf

16:48 Investigation of the primary clusters in the gas chamber for the high precision particle identification (PID) at CEPC

Speaker: Yue Chang (Nankai University)

CEPCworkshop_2022_10_26.pdf

17:12 PID performance study with IDEA Drift Chamber

Speaker: Federica Cuna (高能所)

cc_cepc_cuna.pdf

17:36 PID with Cluster Counting for the CEPC Drift Chamber

Speaker: Shuiting Xin

cepc_talk_26th.pdf

16:00 → 18:00 QCD: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

16:00 Parton showers for high precision e+e- collisions

Parton showers are ubiquitous theoretical tools in collider physics providing a crucial link between theory and experiment. In this talk I will give a general introduction to final-state parton showers and review recent developments in understanding and improving their accuracy - all within the context of the PanScales collaboration. One limitation of most parton showers is that they are inherently classical rather than quantum mechanical. Since the fundamental particles of Quantum Chromo Dynamics carry both spin and colour, any faithful description of collider events must include quantum interference effects due to both. I will therefore discuss in more detail how to incorporate quantum interference effects in parton showers, focusing mainly on spin correlations, and how to potentially measure them at colliders like the CEPC.

Speaker: Alexander Karlberg

Karlberg_CEPC.pdf

16:30 Shape Variables and Power Corrections at e+e- colliders

I illustrate recent findings regarding the structure of linear power corrections to shape variables in e+e- annihilation. These new finding hint at the possibility to estimate linear power correction directly in the three jet region, rather than extrapolating them from the two jet region. Some prospect for the measurement of alpha_S from shape variables at future e+e- colliders are discussed.

Speaker: Paolo Nason

Nason_CEPC-26-10-22.pdf

17:00 Modern Techniques for Multi-Scale Loop Amplitudes

Scattering amplitudes provide theoretical descriptions of the hard interactions taking place at collider experiments. In practice, their computation must be performed within the confines of perturbation theory, to the appropriate order of approximation demanded by experiment. When considering interactions that involve many, possibly heavy particles, the computation of the associated scattering amplitude becomes demanding. In this talk, we discuss the problems involved in frontier multi-scale amplitude computations -- at the two-loop level -- and the modern techniques which are currently used to tackle them. We will discuss the state of the art at contemporary hadron colliders, and prospects for computations at future lepton colliders.

Speaker: Ben Page

Page_CEPC2022.pdf

17:30 Dressing jets with flavour in an infrared safe way

Identifying the flavour of reconstructed hadronic jets is critical for precision phenomenology and the search for new physics at colliders, as it allows to pinpoint specific scattering processes and reject backgrounds. We propose a new approach to define the flavour of jets, a flavour dressing algorithm, which is infrared and collinear safe and can be combined with any definition of a jet. We test the algorithm in 𝑒+𝑒− and 𝑝𝑝 environments and consider some practical applications.

Speaker: Giovanni Stagnitto (University of Zurich)

CEPC22_stagnitto.pdf

20:00 → 22:27 Posters

The poster session will use “Gather Town” virtual meeting room. Please click the following link to enter the room.
Gather Town

Conveners: Dou WANG (IHEP) , Hongjuan Xu, Mingyi Dong (IHEP) , Shan Zeng (IHEP) , Yiming Li (IHEP)

20:00 Accelerator Related Topics

20:03 A01: Problems and Considerations about the Injection Philosophy and Timing Structure for CEPC

Speaker: Meng Li

Poster-Meng.pdf

slice.pdf

20:06 A02: CEPC Cost Model Study and Circumference Optimization

Speaker: Dou WANG (IHEP)

Dou_slides.pdf

Poster-Dou.pdf

20:09 A03: Resistive-wall impedance and incoherent tune shift

Speaker: Yuting Wang (IHEP)

Yuting Wang-POSTER.pdf

Yuting Wang-SLIDE.pdf

20:12 A04: Progress in coating on inwall of the ceramic vacuum chamber for the collider ring's kicker of CEPC

Speaker: Zilin Chen (IHEP)

poster ihep_czl.pdf

slides for poster ihep_czl.pdf

20:15 A05: CEPC LINAC HIGH EFFICIENCY KLYSTRON

Speaker: ZHANDONG ZHANG (Institute of High Energy Physics)

poster.pdf

slide.pdf

20:18 A06: Longitudinal Impedance Measurements and Simulations of a Three-metal-strip Kicker

Speaker: Jinliu Su (IHEP)

Longitudinal impedance measurements and simulations of a three-metal-strip kicker.pdf

poster.pdf

20:21 A07: Protecting a Superconducting CCT Quadrupole Magnet with a CLIQ System

Speaker: Ao Feng (IHEP)

Poster-A07.pdf

slide.pdf

20:24 A08: Quench Protection Design and Simulation of a 13-T Superconducting Dipole Magnet

Speaker: Jinrui Shi (IHEP)

poster.pdf

slide.pdf

20:27 A09: A Study of Thermomagnetic Instabilities in Type Ⅱ Superconductors

Speaker: Wei Li

poster.pdf

slide.pdf

20:30 A10: Numerical analysis of the Screening Current-Induced Magnetic Field Intensity in the HTS Insert of a 16-T Superconducting Dipole Magnet

Speaker: Ze Feng

poster.pdf

slides.pdf

20:33 A11: Design of an extruded aluminum vacuum chamber for narrow-gap undulator at the HEPS

Speaker: Lei Zhang (IHEP)

A11-Poster-CEPC 2022-ZL.pdf

A11-Slide-CEPC 2022-ZL.pdf

20:36 A12: Spin Resonance Free Booster For Future 100 km-scale Circular e+e− Colliders

Speaker: Tao Chen (IHEP)

Chentao-poster.pdf

ChenTao-slide.pdf

20:39 A13: Betatron oscillation and radiation reaction in plasma wakefield accelerators

Speaker: Yulong Liu

Poster_yulong.pdf

Slice_yulong.pdf

20:50 Vertex, Tracker, PID, Magnet

20:53 B01: Study of Synchrotron radiation background at CEPC

Speaker: Yue Sun (IHEP)

CEPC SR background Study.pdf

CEPC SR background Study.pdf

Poster. ..pdf

Poster. ..pdf

20:56 B02: Conceptual Design of CEPC Detector Magnet and Development of Aluminum Stabilized Superconducting Cable

Accelerator Related Topic

Speaker: Menglin Wang

Poster.pdf

slides.pdf

20:59 B03: MAPS-based Upstream Tracker at LHCb Upgrade II

Speaker: Quan Zou (IHEP)

cepcWS_lhcbU2_Intro.pdf

cepcWS_lhcbU2_Intro.pptx

cepcWS_lhcbU2poster_v1.pdf

21:02 B04: Charaterization and operation of ATLASPix3

Speaker: Mingjie Feng

poster.pdf

slides.pdf

21:05 B05: DAQ towards a HVCMOS-based tracker for CEPC

Speaker: Ruoshi Dong

DAQ towards a HVCMOS-based tracker for CEPC_poster.pdf

DAQ towards a HVCMOS-based tracker for CEPC_slide.pdf

21:08 B06: Fully automatic high-precision assembly of silicon detector module

Speaker: Feng Wang (Institute of High Energy Physics)

CEPC_2022_Feng.pdf

21:11 B07: JadePix-3 Beam Telescope: The Developments and Recent Measurements

Speaker: Sheng Dong (IHEP)

jadepix3-telescope-poster.pdf

jadepix3-telescope-slides.pdf

21:14 B08: CEPC Drift Chamber Track Finding Algorithm

Speaker: Mengyao Liu

221025_cepc_dc_poster.pdf

21:17 B09: A novel method to study the primary track using TPC prototype with integrated UV laser

Speaker: Liwen Yu

1min_Video_Talk.mp4

poster.pdf

slide.pdf

21:22 B10: Cluster counting algorithm based on machine learning

Speaker: Zhefei TIAN (Wuhan University)

poster_2022_10_26_CEPCWorkshop_ClusterCounting_ML.pdf

slides_2022_10_26_CEPCWorkshop_ClusterCounting_ML.pdf

21:25 B11: The chain of the dN/dx study based on CEPCSW

Speaker: Wenxing Fang (IHEP)

poster.pdf

slides.pdf

21:35 Calorimeter and Calorimeter Software

21:38 C01: Robust CsPbBr3 and Zn-Cd-S quantum dots co-doped nano-glass composites with broadly tunable emissions

Speaker: Zexuan Sui

2022CEPC.pdf

Zexuan Sui 2022CEPC poster.pdf

21:41 C02: Enhanced photoluminescence quantum yield of Ce3+-doped aluminium-silicate glasses for scintillation application

Speaker: Tao Wu

CJLU-introduction.pdf

Poster-CJLU-WT.pdf

21:43 C03: Simulation studies of PFA hadronic calorimeter with scintillating glass

Speaker: Dejing Du (IHEP)

CEPC_Workshop_Poster.pdf

CEPC_Workshop_Slides.pdf

21:47 C04: Performance study of Stereo Crystal Electromagnetic Calorimeter

Speaker: Xiao Zhao (IHEP)

cepc2022_zhaoxiao.pdf

21:50 C05: DAQ system of the dual-readout calorimeter for Future e+e- colliders

Speaker: Yun Eo (Yonsei University)

CEPC_poster.pdf

CEPC_slide.pdf

21:53 C06: Study on energy resolution of the dual-readout calorimeter for future e+e- colliders using GEANT4 simulation and the first test-beam

Speaker: Kyuyeong Hwang (Yonsei University)

CEPC2022_KHwang_poster_DRC.pdf

CEPC2022_KHwang_slide_DRC.pdf

21:56 C07: The DAQ system of the dual-readout calorimeter for future e+e- colliders and its operation in 2022 August test-beam experiment at CERN

Speaker: Haeun Jang (Yonsei University)

Poster.pdf

Slide.pdf

21:59 C08: High granularity SIPM channels for the first test beam of the dual-readout calorimeter for future e+e- colliders

Speaker: Dongwoon KIM (Yonsei University)

CEPC Wrokshop poster.pdf

CEPC Wrokshop slide.pdf

22:02 C09: The process of assembly for the module of the dual-readout calorimeter

Speaker: Guk Cho (Yonsei University)

2022-10-26_DRC_poster_gcho.pdf

gcho_2022CEPC_drc_v2.pdf

22:05 C10: DQM and data handling procedure of first dual-readout calorimeter test beam experiment at CERN for future e+e- colliders

Speaker: Sungwon Kim (Yonsei University)

2022_CEPC_DRC_Test_Beam_DQM_Poster.pdf

2022_CEPC_DRC_Test_Beam_DQM_Slide.pdf

22:08 C11: Study on performance test of glass scintillator

Speaker: Zhehao Hua

Poster-test method-HZH.pdf

Test methods-introduction-2.pdf

22:11 C12: Valence regulation of cerium ions in borosilicate (borogermanate) glass scintillatior synthesized in air atmosphere

Speaker: Zhehao Hua

JGSU-introduction.pdf

Poster-SXY.pdf

22:14 C13: Quantum GAN for fast shower simulation

Speaker: xiaozhong huang (IHEP)

Poster_XZH.pdf

Slide_XZH.pdf

22:17 C14: Clustering algorithm for long crystal bar ECAL

Speaker: Weizheng Song

poster.pdf

Thursday, 27 October

10:00 → 12:00 Accelerator: 10

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Xueqing Yan (PKU)

10:00 Accelerator Activities at Tsinghua University

Speaker: Yingchao Du

10:20 Progress on advanced laser development and plasma based accelerator applications in Tsinghua and BAQIS

Speaker: Wei Lu (Tsinghua University)

10:40 Optimal beam-loading for two bunch plasma wakefield accelerator

Speaker: Weiming An (Beijing Normal University)

11:00 Plasma accelerator physics issues

Speaker: Ming Zeng (Tsinghua University)

11:20 On polarimeter study for CEPC

Speaker: Shanhong Chen

On polarimeter study for CEPC.pdf

10:00 → 12:11 PID and other technologies: 2

Zoom meeting ID/Passcode:836 9483 9089 / 434662

10:00 RICH detector at CLEO

Speaker: Marina Artuso

CleoRichArtuso.pdf

10:35 ARICH Detector at Belle II

Speaker: Shohei Nishida (KEK)

221027-cepc-arich.pdf

10:59 Fast scintillators for time measurement

Speaker: Xiaolong Wang (Fudan University)

Timing_FScint_CEPC_2022.pptx

11:23 Status of R&D for muon detector based on scintillator

Speaker: Hongyu Zhang (Fudan university)

Status of R&D for muon detector based on scintillator-1027.pdf

11:47 The R&D and Performance of the Fast Timing PMTs

Speaker: Sen Qian (高能所)

MCP-PMTs--V2.0.pdf

10:00 → 12:05 QCD

Zoom meeting ID/Passcode:818 8149 1831 / 967516

10:00 QCD needs for e+e- precision physics

Speaker: Ayres Freitas (University of Pittsburgh)

freitas_cepc2022.pdf

10:25 New analyses of event shape observables and the determination of QCD $\alpha_s$ running behavior in perturbative domain

We give comprehensive analyses for event shape observables in electron-positron annihilation by using the Principle of Maximum Conformality (PMC) which is a rigorous scale-setting method to eliminate the renormalization scheme and scale ambiguities in perturbative QCD predictions. Conventionally the renormalization scale is simply fixed to the center-of-mass energy $\sqrt{s}$, and only one value of the QCD coupling at the single scale $\sqrt{s}$ can be extracted from event shape observables. The PMC renormalization scales are determined by absorbing the non-conformal contributions. The resulting PMC scales change with event shape kinematics, reflecting the virtuality of the underlying quark and gluon subprocess. The PMC scales thus yield the correct physical behavior of the scale and the PMC predictions agree with precise experimental measurements. More importantly, we can precisely determine the running of the QCD coupling constant $\alpha_s(Q^2)$ over a wide range of $Q^2$ in perturbative domain from event shape distributions measured at a single center-of-mass energy $\sqrt{s}$.

Speaker: 声权 王 (贵州民族大学)

event shapes_CEPC.pdf

10:50 Heavy-quark-pair production at lepton colliders at NNNLO in QCD

We compute the total cross section of heavy-quark-pair production in 𝑒+𝑒− annihilation mediated by a virtual photon at the next-to-next-to-next-to-leading order (NNNLO) in Quantum Chromodynamics. The result is expressed as a piecewise function defined by several deeply expanded power series. The result significantly reduces the theoretical uncertainty. For example, for a collision energy of 500GeV, the scale dependence has been reduced from 0.72% at the next-to-next-to-leading order (NNLO) to 0.15% at the NNNLO, which meets the request by future lepton colliders.

Speaker: Xiang Chen (Peking University)

XiangChen_CEPC2022.pdf

11:15 Amplitude Bootstrap of The Energy-Energy Correlation in QCD

Energy-energy correlation (EEC) has been studied for almost 40 years, with its analytical calculation only being done quite recently using integration-by-parts (IBP) identities. We present a bootstrap strategy to calculate the EEC up to the next-to-leading order (NLO) correction by crafting an ansatz based on the colour structure of the QCD amplitudes and the Symbols of the master integrals relevant for the 𝛾∗→𝑞𝑞¯𝑔 process, which we impose self-consistent constraints to reduce the ansatz's parameters. We expect that symmetry of √z→−√z argument, the end-point kinematics, and colour structure of the QCD master integrals can constrain the ansatz significantly. The results would be presented in terms of classical polylogarithms.

Speaker: Reynaldi Gilang Mulyawan (University of Indonesia)

qcd-bootstrap.pdf

11:40 A new method of extracting the strong coupling constant from energy correlators

The energy correlators measure the pattern of the energy deposition in detectors. The collinear limit, where the angle between the detectors approaches zero, is of particular interest for describing the substructure of jets produced at colliders. By utilizing our factorization theorem and calculating the required ingredients, we perform the resummation of the logarithmically enhanced terms for the projected three-point energy correlator in the collinear limit through to NNLL by renormalization group evolution.

Speaker: Zhen Xu (Zhejiang University)

E3C@NNLL-CEPC.pdf

13:30 → 15:30 Accelerator: 11

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Jie GAO (IHEP)

13:30 Alignment and installation logistics

Speaker: Xiaolong Wang (高能所)

3D-adjustment based on horizontal distance constraints.docx

Alignment and installation.pptx

13:50 CEPC siting and civil construction preparation (Qinhuangdao, Changchun)

Speaker: Xiao Yu

14:10 CEPC siting and civil construction preparation (Huzhou)

Speaker: Ke Huang

14:30 CEPC siting and civil construction preparation (Changsha)

Speaker: zhiji li (Msdi)

14:50 DeepC Electronic Documentation system for CEPC

Speaker: Ke Huang

15:10 Flash Radiotheraphy with CEPC synchrotron radiation

Speaker: Jike Wang (Wuhan University)

13:30 → 15:30 Physics Beyond the SM: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Bruce Mellado (University of the Witwatersrand) , Fa Peng Huang (Sun Yat-Sen (Zhongshan) University) , XuAi ZHUANG (高能所) , Yu Gao

13:30 Global fit of 2HDM within GAMBIT under future Higgs precision measurements

Speaker: 伟 苏 (Sun Yat-Sen University)

CEPC2022.pdf

14:00 Identifying CP-odd component in Higgs boson

Speaker: 昌龙 许 (school of physics Peking Uniersity)

Identify CP-odd component.pdf

14:30 Monojet search for heavy neutrinos at future Z-factories

Speaker: Yin-Fa Shen (Huazhong University)

Monojet Search for Heavy Neutrino at Future $Z$-Factory.pdf

15:00 Electroweak Phase Transition in 2HDM under Higgs, Z-pole, and W precision measurements

Speaker: Huayang Song (Institute of Theoretical Physics)

SFOEWFT&mW.pdf

13:30 → 15:30 TDAQ and Online: 1

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Conveners: Martino Gagliardi (University and INFN, Torino Italy) , Paolo Durante (CERN) , Zhen-An LIU (IHEP)

13:30 Overview of the ALICE trigger system

ALICE (A Large Ion Collider Experiment) is one of the four main LHC experiments and is optimised to study heavy ion collisions.
The ALICE detectors and readout system have undergone a major upgrade to increase the data acquisition rates to the required level.
The integrated luminosity is expected to be increased by a factor of 100 by increasing the readout rate to 50 kHz for Pb-Pb and to 1 MHz for pp collisions.
A novel trigger and timing distribution system is implemented based on Passive Optical Network and GigaBit Transceiver technology.
To assure backward compatibility, a triggered mode based on RD12 TTC technology is kept and re-implemented under the new Central Trigger System. A new universal ALICE Trigger Board based on the Xilinx Kintex Ultrascale FPGA has been designed that can function as a Central Trigger Processor (CTP), Local Trigger Unit (LTU), and monitoring interface.

Speaker: Roman Lietava (University of Birmingham)

TriggerRun3_v3a.pptx

14:00 The new LHCb GPU trigger

From 2022 the LHCb experiment will use a triggerless readout system collecting data at an event rate of 30 MHz and a data rate of 4 Terabytes/second. A software-only High Level Trigger will enable unprecedented flexibility for trigger selections. During the first stage (HLT1), track reconstruction and vertex fitting for charged particles enable a broad and efficient selection process to reduce the event rate to 1 MHz. Tracking and vertexing at 30 MHz represents a significant computing challenge, and LHCb utilizes the inherent parallelism of the triggering process to meet throughput requirements with GPUs. A close integration with the DAQ and event building allows for a particularly compact system, with the GPUs hosted in the same servers as the FPGA cards receiving the detector data, which reduces the network to a minimum. This architecture also inherently eliminates latency considerations, allowing GPUs to be used despite the very high required throughput. We review the software and hardware design of this system, reflect on the challenges of developing for heterogeneous architectures, discuss how it meets LHCb’s performance requirements, and show the commissioning status from LHC Run 3.

Speaker: Marianna Fontana (LPNHE (Paris))

Hlt1_CEPC_MFontana.pdf

14:30 The CMS Muon Trigger

Speaker: Ece Asilar (Hanyang University)

CEPC2022_eceasilar_3.pdf

15:30 → 16:00 Coffee break

16:00 → 18:00 Accelerator: 12

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Carlo Pagani (INFN-MI)

16:00 Accelerator activities at IN2P3

Speaker: Angeles Faus-Golfe

16:20 Studies of the ground motion induced vibrations in FCC-ee Z mode

Speaker: Freddy Poirier

CEPCWorkshop_Vibrations_studies_Eva_Montbarbon_FP.pdf

16:40 CEPC Polarization design status

Speaker: Zhe DUAN (高能所)

CEPC_polarization_v2.pptx

17:00 CEPC plasma injector study status and test facility plan

Speaker: Dazhang LI (IHEP)

17:20 SppC general design status

Speaker: 靖宇 Tang (IHEP, CAS)

SPPC Study Status-202210-Tang.pptx

17:40 SC high field magnets and international collaborations

Speaker: Qingjin XU (高能所)

Advances in the High Field Accelerator Magnets-20221027.pptx

16:00 → 18:00 PID and other technologies: 3

Zoom meeting ID/Passcode:836 9483 9089 / 434662

16:00 ARC - a novel RICH detector for a future e+e- collider

Speaker: Martin Tat

ARC_Presentation_CEPC_Workshop_27th_October_2022.pdf

16:24 RICH detectors at LHCb

Speaker: Giovanni Cavallero (CERN)

lhcbRich.pdf

16:48 MRPC and its application in ToF

Speaker: Yi Wang

MRPC technology for TOF.pptx

17:12 Performance studies and future opportunities of the TORCH detector

Speaker: Maarten Van Dijk

27-10-2022_MvanDijk_TORCH.pdf

27-10-2022_MvanDijk_TORCH.pptx

16:00 → 18:00 Physics Beyond the SM: 2

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Bruce Mellado (University of the Witwatersrand) , Fa Peng Huang (Sun Yat-Sen (Zhongshan) University) , XuAi ZHUANG (高能所) , Yu Gao

16:00 Probing Dark Neutral Fermion at Lepton Colliders

Speaker: Kai Ma (Shaanxi University of Technology)

talkDamate.pdf

16:30 Dark sector-photon interactions at electron colliders.

Speaker: Yu Zhang (Nanjing University)

Dark sector-photon interactions at electron colliders.pdf

17:00 SMEFT global fit for 4-fermion and CPV operators at future colliders

Speaker: Yong Du (ITP CAS)

CEPC2022-4fCPV-YongDu.pdf

17:30 The ALP explanation to muon $(g-2)$ and its test at future tera-$Z$ and Higgs factories

Speaker: Xiaoping Wang (Beihang University)

ALP-for-muon-g-2-at-CEPC-xiaopingwang.pdf

16:00 → 18:00 TDAQ and Online: 2

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Conveners: Fabrice Le Goff (CERN) , Zhen-An LIU (IHEP)

16:00 Overview of the Phase 2 upgrade for CMS Trigger and DAQ

Speaker: Vladimir Rekovic (Vinca Inst. of Nucl. Sciences)

Phase2_Trigger_CMS_CEPC2022_VRekovic.pdf

16:30 ATLAS DAQ Outlook

Speaker: Matias Bonaventura (CERN)

ATL-COM-DAQ-2022-109(1).pdf

16:55 The new ALICE DAQ system for LHC Run 3

ALICE (A Large Ion Collider Experiment) is a heavy-ion detector studying the physics of strongly interacting matter and the quark-gluon plasma at the CERN LHC (Large Hadron Collider). During the second long shut-down of the LHC, the ALICE detector was upgraded to cope with an interaction rate of 50 kHz in Pb-Pb collisions, producing in the online computing system a sustained input of 3 TB/s.
The new data-acquisition system consists of 200 readout nodes, collecting the data transferred from over 8000 detector links to PCs memory by dedicated PCI boards.
These machines also perform some initial data processing tasks, like compression and data quality monitoring, before sending data over an Infiniband network to aggregate and handle the full detector events in a dedicated online processing farm.

Speaker: Sylvain Chapeland (CERN)

20221027_ihep_daq_v02.pdf

17:15 The new ALICE operational logbook for LHC Run 3

The ALICE experiment at CERN's Large Hadron Collider benefited from a major upgrade during the Long Shutdown 2 (2018 - 2022) which will generate up to 27 Tb/s of data from the detectors during the Runs 3 and 4. The update includes a redesign of the computational system, now named O2 (Online-Offline) and a new suite of web application GUIs which will be used by multiple teams and operators in the control room of the experiment 24 hours a day. Thus the new GUI suite includes a new tool named Bookkeeping, whose main purpose is to keep track of the experiment and provide a history state of the system at any point in time.
Bookkeeping allows users to manually insert system updates which then can be filtered and retrieved to quickly access the information they are looking for. Moreover, it provides the means to other systems to enable them to automatically store and retrieve data. Based on the input, it builds global and individual statistics about the system performances which in turn helps improving the overall efficiency of the experiment.
The provided UI and API use modern web technologies and are based on a shared web framework developed in-house, to ensure the application is robust enough to fill the needs of Run 3 and Run 4 while being easily maintained and enhanced.
This presentation describes the Bookkeeping functionalities, the purpose they serve and the means that have been put in place to fulfill them.

Speaker: Martin Boulais (CERN)

Bookkepping_HECEPC_v2.pdf

Friday, 28 October

10:00 → 12:00 MDI & Integration: 1

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Convener: Sha BAI (高能所)

10:00 Beam backgrounds at SuperKEKB/Belle II (Invited)

Speaker: Hiroyuki Nakayama (KEK)

20221028_CEPC.pdf

10:30 Beam backgrounds at BEPC II/BES III

Speaker: Huangchao Shi (USTC)

Shihc_CEPC workshop 2022.pdf

11:00 Beam backgrounds at the CEPC

Speaker: Haoyu SHI (IHEP)

Shy_CEPCWorkshop2022_20221028.pdf

11:30 Beam position monitors designed for the CEPC

Speaker: Jun He (IHEP)

Beam_position_monitor_design_for_CEPC_V5.pptx

10:00 → 12:00 Offline & Software: 1

Zoom meeting ID/Passcode:836 9483 9089 / 434662

10:00 Status of CEPC Simulation Software

Speaker: Tao LIN (高能所)

lintao-202210-CEPC-Workshop-CEPCSW-Simulation-Framework.pdf

10:24 Tracking in CEPC Silicon Detector

Speaker: Chengdong FU (IHEP)

TrackingInCEPCSiliconDetector_v1.pdf

10:48 Status of Drift Chamber Software

Speaker: Yao Zhang (Institute of high energy physics, Beijing China)

221028_CEPC_workshop.pdf

11:12 Updated Progress in a New PFA for Crystal Bar ECAL

Speaker: Yang Zhang

20221028_Reconstruction_in_ECAL.pdf

11:36 CEPC Computing

Speaker: Dr Xiaomei Zhang

Status of CEPC computing-2022-v3-Collaboration Meeting.ppt

10:00 → 12:00 Performance: 1

Zoom meeting ID/Passcode:818 8149 1831 / 967516

Conveners: Emanuele Bagnaschi (Paul Scherrer Institut) , Gang LI Gang(EPD.IHEP) (高能所) , Jianming Qian (University of Michigan) , Shu Li (TDLI, SJTU)

10:00 Impact of flavor tagging and CSI on Higgs to bb/cc/gg signal strength accuracy measurement

Speaker: 永峰 朱

zhuyf-CEPCWS2022.pdf

10:20 Jet charge measurement at CEPC

Speaker: Hanhua CUI

Jet_Charge_Cuihh_20221028.pdf

10:40 ECAL resolution studies for flavor physics

Speaker: Yuexin Wang

Yuexin_BToPiPi_20221028.pdf

11:00 Fast simulation of the 4th detector at CEPC with Delphes

Speakers: 旭 高 (jilin unversity) , 旭 高 (jilin unversity)

Delphes_CEPC.pdf

11:20 Helicity amplitude

Multiple EW vector boson amplitudes are known to have bad energy behavior for individual Feynman diagrams, which causes many problems for numerical and theoretical analysis. Based on Goldstone equivalence theorem(GET), we introduce a new representation of Feynman rules that makes GET manifest, while reproduces the exact results of the amplitudes. The new helicity has no subtle gauge cancellation, every diagram has a specific physical interpretation, when the pole approaches on-shell. We implement this new Feynman rules into numerical codes of HELAS (Helicity Amplitude Subroutines) and study several process with the new HELAS.

Speaker: 俊谋 谌 (暨南大学)

HELAS-CEPC2022.pdf

HELAS-CEPC2022.pptx

11:40 Performance of jet flavor tagging and measurement of Rb using ParticleNet at CEPC

Speakers: Libo LIao, Libo Liao (HZNU)

liaolibo20221028.pdf

13:30 → 15:40 MDI & Integration: 2

Zoom meeting ID/Passcode: 875 5869 2197 / 754514

Convener: Suen Hou (IPAS)

13:30 CEPC beam pipe and vertex mechanical design

Speakers: Jie Feng (IHEP/Hunan University) , Quan JI (IHEP)

Heat transfer analysis of CEPC beampipe.pptx

13:50 Integration in the interaction region at CEPC

Speaker: Minxian Li (IHEP)

2022 Integration in the interaction region at CEPC-V2-lmx.pptx

14:10 Conceptual design of the CEPC magnet and cable development

Speaker: Menglin Wang (IHEP)

progress of CEPC detector magnet.pptx

14:30 Results on studies of an ILD-like detector at CEPC

Speaker: Peter Kluit (Nikhef)

ILD_like_at_CEPC.pptx

15:00 Design of the CEPC LumiCal

Speaker: Suen Hou (IPAS)

20221028_LumiCal-v3b.pdf

15:20 Update on luminosity systematics at CEPC

Speaker: Ivanka Bozovic (Vinca Institute of Nuclear Sciences)

CEPC_WS2022_BS_Bozovic.pdf

13:30 → 15:58 Offline & Software: 2

Zoom meeting ID/Passcode:836 9483 9089 / 434662

13:30 Status of CEPC Core Software

Speaker: Teng Li (Shandong University)

Status of CEPC Core Software.pdf

13:54 Key4hep Status Report

Speaker: Andre Sailer (CERN)

221028_sailer_key4hep_status.pdf

14:18 ATLAS Fast Calorimeter Simulation

Speaker: xiaozhong huang (高能所)

Xiaozhong Huang_ATLAS_Fast _Calorimeter_Simulation.pdf

14:42 Generative Models for Fast Simulation of Electromagnetic and Hadronic Showers in Highly Granular Calorimeters

Speaker: Peter McKeown (DESY)

mckeown_CEPC_WS_2022_Final.pdf

15:06 Status of IDEA Software for Simulation and Reconstruction

Speaker: Lia Lavezzi

20221027_lavezzi_ideasw.pdf

15:30 → 16:00 Coffee break

16:00 → 18:05 Posters: 2

The poster session will use “Gather Town” virtual meeting room. Please click the following link to enter the room.
Gather Town

16:00 This is identifical to the post session on Wednesday

Poster session on Wednesday

20:00 → 21:30 Plenary: 3

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Jie GAO (IHEP)

20:00 The Great Questions in Fundamental Physics and the Detector Technology Challenges to Address them via the ECFA Detector Roadmap

Speaker: Prof. Ian Shipsey (Oxford)

CEPC-2022-ECFA-DETECTOR-R-and-D-Roadmap-Shipsey-v1.pdf

20:30 Recent progress of theory

Speaker: Christophe Grojean (CERN)

Grojean_CEPC22.pdf

21:00 Highlights of the accelerator R&D

Speaker: Yuhui Li

AccHighlights.pdf

AccHighlights.pptx

21:30 → 22:00 Coffee break

22:00 → 23:35 Plenary: 4

Zoom meeting ID/Passcode: 898 0008 5395 / 853597

Convener: Jianchun Wang (IHEP)

22:00 R&D highlights of detector, computing & technologies

Speaker: Manqi Ruan (IHEP)

Detector-Summary-v3-1.pdf

22:30 Anomalies in particle physics

Speaker: Jianming Qian (University of Michigan)

Anomalies2022.pdf

23:00 Workshop Closing

Speaker: Jianchun Wang (IHEP)

20221028_CEPC2022_Closing.pdf