Shu's weekly group discussion

Monday 9 Nov 2026, 15:30 → 19:05 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N630 - Smart Classroom (Tsung-Dao Lee Institute)

Haidar Mas'ud Alfanda (TDLI, SJTU), Matthias Tartarin (TDLI, SJTU), Zhiyu Zhao

Online Zoom meeting room:

https://cern.zoom.us/j/4042031778

(PIN protected, see message from the group chat announcement)

15:30 → 15:35 Introduction & Announcements

Xuliang's pre-defense on Tuesday Nov 10, 2026, 10:00 AM at N631 (https://indico-tdli.sjtu.edu.cn/event/5439/).

Welcome everyone to attend.

15:35 → 15:45 Status

Speaker: Zhi Wang (TDLI, SJTU)

15:45 → 15:55 Status

Speaker: Zhijing Zhang (TDLI, SJTU)

Today's focus:

[DarkSHINE]:

• Compared the Q-E calibration results obtained from ¹⁷⁶Lu intrinsic radiation, ¹³⁷Cs, and ²³²Th at 20 degree.

• Evaluated the effects of the fitting range, overlapping peaks, Compton continuum, and 176Lu intrinsic radiation subtraction on the ¹³⁷Cs calibration results.

• Developed a method to separate the ¹⁷⁶Lu and ¹³⁷Cs components using only the source-present dataset.
• Collected ¹⁷⁶Lu intrinsic-radioactivity, ¹³⁷Cs, and ²³²Th data at three temperature points with Zhiyu, but the data have not yet been analyzed.

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Plans:

[DarkSHINE]:

• Continue optimizing the fitting and calibration methods to understand the differences among the three calibration results.

• Analyze the data collected at different temperatures and study the temperature dependence of the peak positions and calibration coefficients.

15:55 → 16:05 Status

Speaker: Kang Yu (TDLI, SJTU)

[AQP: GN3XPV01 MC-to-MC Scale Factors]

1. Generated specific h5 files from previously used samples; tasks failed because of empty content
2. To-do: use DAOD_PHYS samples instead

 

[Run 3 Inclusive ZZ analysis]

1. Read part of JOs for EFT samples request

16:05 → 16:15 Status

Speaker: Linjing Duan (TDLI, SJTU)

Progress

ZZy

• Continued Easyjet development and MR validation 

• Checked the selections and cutflow, and investigated remaining trigger matching/SF issues.

• Started adding truth variables to the ntuples.

• Studied the signal-extraction procedure.

HGTD

• Set up C0/C1 offline replay with recorded configurations and pixel masks.

• Enabled CTest/Boost.Test and validated the LatencyScan fix with six passing test cases.

• Added timing records and established an initial VTH performance baseline.

Next steps

ZZy

• Resolve the remaining framework items before starting ntuple production.

• Compile the mc23g sample list.

• Follow up on the MR for the MC sample request.

HGTD

• Start the WP1 Python toy-data framework and run a first VTH closure test through the production fitting code.

• Investigate how to measure per-chip extractor time following Alex’s suggestions, and discuss the approach this week.

16:15 → 16:25 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

16:25 → 16:35 Status

Speaker: Zelin Yan (TDLI, SJTU)

16:35 → 16:45 Status

Speaker: Baihong Zhou (TDLI, SJTU)

16:45 → 16:55 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

16:55 → 17:05 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

[DarkSHINE ECAL]:

• On Saturday, I met with Professor Cao Zhe at TDLI to discuss the progress of the prototype electronics. The schematic and PCB designs are basically complete, and we are preparing to move into production over the next few weeks. And he would like me to perform DC impedance tests on the front-end board connectors.
• Plans:
  • Finish the tests these days.

 

[STCF CsI EMC]:

• Conducted preliminary tests of four SiPM array circuit topologies using a laser. The performance of the different circuits was generally as expected.

• Conducted preliminary SPICE circuit simulations to better understand the signal behavior

• Plans:
  • Measure and compare the responses and resolutions of these circuit topologies under crystal signals.
  • Refine the SPICE simulations.

 

[CEPC crystal ECAL]:

• Using the PCB designed for the CsI crystal unit, I also assembled a SiPM array to increase the Cherenkov-light yield. Previous tests produced signals that were too small due to insufficient energy and low light-collection efficiency. Cosmic-ray testing is currently underway.

• Plans:
  • Compare the Cherenkov-light yield using different short-pass filters: ZWB3, SCHOTT UG11, and Hoya U330.
  • Perform optical simulations of the crystal to analyze the Cherenkov-to-scintillation ratio and develop a waveform-fitting method.

 

17:05 → 17:15 Status

Speaker: Haidar Mas'ud Alfanda (TDLI, SJTU)

DarkSHINE

• Finished the analytic calculations for the fermionic DM operators (MCP, EDM, MDM, AM, CR)
• Modified and updated the DSS framework
• Currently running some test jobs
• If everything is okay, will then generate signal events with large statistics

 

ATLAS HGTD

• Took a shift for the wafer test during the week end

17:15 → 17:25 Status

Speaker: Matthias Tartarin (TDLI, SJTU)

 

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Today's focus: 

[ssWW]:

• Continuing with the ssWWjj_FastFrames unfolding work. 
• EFT plan has been updated too, waiting for full sample to start it.
  
  
  [Full Run-3 Hyy*]:
• Preparation for the kick-off tomorrow. Everything should be good from our side.

 

[ZZy]:

• CP task: Now existing within the Muon CP team, with a JIRA ticket.
• Easyjet "validation-branch" pushed with the latest modifications. 
• In the meantime, batch production scripts are ready.

 

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Plans: 

• [Full Run-3 Hyy*]:  Kick-off tomorrow.
• [ZZy]: Nothing in particular to emphasize; continuous on-going effort.
• [ssWW]: Continue with the Unfolding work; Ready to start with the EFT.

17:30 → 18:25 REU: Undergraduate Research Discussions

17:30 Status (w/ Linjing&Danning)

Speakers: Bingxian Li (SPA, SJTU), Jiacheng Shi (SPA, SJTU), Yuning Chen (Zhiyuan College, SJTU), Zhengyang Qian (SPA, SJTU)

17:35 Status (w/ Haydar)

Speakers: Hansheng Ye, Mingyu Huang (Univ. of Manchester (GB))

17:40 Status (w/ Xuliang)

Speaker: Hongyi Chen (University of Nottingham, Ningbo, China)

17:45 Status

Speaker: Jing Li (Fudan Univ. (CN))

17:50 Status

Speaker: Ze Li (Zhiyuan College, SJTU)