W/Z physics in CDR Zhijun Liang IHEP,CAS.

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Presentation transcript:

W/Z physics in CDR Zhijun Liang IHEP,CAS

News: CEPC Workshop CEPC workshop 24-26 May 2018 Università degli Studi Roma https://agenda.infn.it/conferenceDisplay.py?confId=14816

News: CEPC R & D funding application CEPC is applying for R & D in Ministry of Science and Technology of the people republic of China (MOST) ~32 Million RMB Project leader : Joao Costa Application book submitted Defensed last week.

Backup

News Some discussion about CEPC Z pole running . WW threshold scan http://indico.ihep.ac.cn/event/7709/ Two possibility: E=240GeV, L=1.6 X 1035 cm-2s-1, solenoid field = 3T ( new default ) Two year running proposed by accelerator team WW threshold scan Proposal from accelerator team One year running about 160GeV Total luminosity 3.2 ab-1

CEPC W/Z physics Plan for CDR Plan to cover the prospects of 6-7 key parameters. Text for CDR need to ready soon Contributions are welcome

Performance input Identify some performance input needed to support the W/Z physics prospect study May need to repeat some study with 3T magnetic field and new detector geometry Afb(l): lepton angular resolution R_b: “B jet efficiency” vs “cjet/light rejection “ W mass (direct approach): jet energy resolution W mass (threshold scan): ? N_v : photon energy resolution