CEPC Physics and detector regular meeting

Wednesday 5 Sep 2018, 15:00 → 18:40 Asia/Shanghai

A415 (IHEP)

Rolling CDR Indico Page: https://indico.ihep.ac.cn/event/8650/

document main_CDR.pdf

Attending: Ouyang Qun, Zhijun Liang, Huirong Qi, Wei Zhao, Chengdong Fu, Gang Li, Joao, Zhaoru

Vidyo: Jianbei Liu, Yaquan Fang, Meng Wang

1. Introductory remarks from Joao
1) Schedule for September:
    ⁃    We submitted the CDR version 2 for review by international committee on Sep. 1st.
    ⁃    The authorship is still collected, feel free to provide this link to colleagues for reviews and consideration of authorship
    ⁃    Monday, Sept. 10: Rehearsal talks for IRC meeting (full day meeting)
    ⁃    Tuesday, Sept. 11: Print copies for review committee visit at IHEP. Any updated material we want to introduce should be there by Monday. Please fix typos and obvious mistakes. New material should be vetted before being included.
    ⁃    Thu-Sat, Sept. 13-15: International Review Committee Meeting. Get preliminary recommendations from committee
    ⁃    Fri, Sept. 21: Publish CDR on the CEPC website

2) International Review Agenda
All the talks should be short, leaving more time for discussion and questions.

    ⁃    Experimental Condition will have two talks, PFA concept from Manqi and IDEA concept from Franco
    ⁃    Silicon: Meng Wang will give the talk
    ⁃    TPC: Huirong will give talk and he will check whether Deng Zhi can come here
    ⁃    Full silicon: Chengdong give talk and Weimin help to prepare the slides
    ⁃    ECAL: Jianbei can give talk, but he is only available on Friday
    ⁃    Magnet: Wei Zhao will give talk
    ⁃    Muon: may has 2 talks, baseline and mu-well. Joao will disscuss with Liang and Paolo
    ⁃    DAQ: All the detector people should help with this talk. Fei Li will give a short talk with 10 min.
    ⁃    MDI: may has two talks: MDI background and luminosity. Joao will check with Suen wether he will come
    ⁃    Performance: The choice of speaker will be discussed offline
    ⁃    physics: One possibility is Jianming give Higgs talk and Zhijun give EWK talk. But it needs more discussion

3) Major Outstanding issues towards Draft Version 3.0
    ⁃    ECAL: Calorimeter optimization needs to be updated — Jianbei

• For figure 10.9, Jianbei suggested that we firstly use the uniformed plot, and set the energy resolution un-uniformed, then compare the difference. If the difference is not significant, we can further optimize the thickness arrangement to get the un-uniformed plot, so we can have a better understanding of the low energy photon performance.
• Joao agree with it, but they need to discuss with Manqi about the new plot he made, since the resolution is worse in new plot and thickness is changed
• figure 10.9 (b) is updated in git, but is not shown in submitted version 2. Jianbei will check the new plots and bring up a solution soon

    ⁃    Silicon Tracker : Add details on the current layout (strip type, angles, etc)

• add 1-2 sentense, since the full silicon has more details about the layout, but the basline doesn't have details.

 

15:00 → 15:20 Introduction

Speaker: Joao Guimaraes Costa

Slides CEPC-physics-detector-introduction-20180905.pdf

15:20 → 18:40 Quick CDR reports from conveners

15:20 Ch1 Summary

Speaker: Joao Guimaraes Costa

15:30 Ch2 Theory

Speaker: Liantao Wang (University of Chicago)

15:40 Ch3 detector concept

Speakers: Jianming Qian (University of Michigan) , Joao Guimaraes Costa, Mr Manqi Ruan (IHEP)

15:50 Ch4.1 Silicon Vertex

Speakers: Prof. Qun OUYANG (IHEP) , Dr Yunpeng LU (Institute of High Energy Physics, CAS)

16:00 Ch4.2 Silicon Tracker

Speaker: Meng Wang (高能所)

16:10 Ch4.3 TPC

Speaker: Dr Huirong Qi (Institute of High Energy Physics, CAS)

16:20 Ch4.4 Full silicon concept

16:30 Ch4.5 Drift Chamber

Speaker: Francesco Grancagnolo (INFN-Lecce)

16:40 Ch5 Calorimeter

Speakers: Haijun Yang (Shanghai Jiao Tong University) , Prof. Haijun Yang (Shanghai Jiao Tong University) , Dr Jianbei Liu (University of Science and Technology of China) , Prof. Tao HU (IHEP)

16:50 Ch5 Dual Readout Calorimeter

Speaker: Roberto Ferrari (INFN)

17:00 Ch6 Magnet

Speakers: Dr Feipeng NING Feipeng (高能所) , Mr Zian ZHU Zian (高能所)

17:10 Ch7 Muon Detector

Speakers: Prof. Liang Li (Shanghai Jiao Tong University) , Paolo Giacomelli (INFN-Bo)

17:20 Ch8 DAQ

Speakers: Mr Kejun ZHU (高能所) , Prof. Zhen An LIU Zhenan (IHEP)

17:30 Ch9 MDI

Speaker: Dr Hongbo ZHU (IHEP)

17:40 Ch10 Detector Performance

Speakers: LI Gang ( EPC.IHEP ), Mr Manqi Ruan (IHEP) , Prof. Yaquan FANG Yaquan (高能所)

17:50 Ch11 Physics analysis

Speakers: LI Gang ( EPC.IHEP ), Mr Manqi Ruan (IHEP) , Prof. Yaquan FANG Yaquan (高能所) , Prof. Zhijun Liang (IHEP)