Shu's weekly group discussion

Wednesday 15 Oct 2025, 10:00 → 13:00 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N631 - Smart Classroom (Tsung-Dao Lee Institute)

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

10:00 → 10:10 Status

Speaker: Kang Yu (TDLI, SJTU)

10:10 → 10:20 Status

Speaker: Linjing Duan (TDLI, SJTU)

CEPC Zvvy nTGC

• generate the cross term samples for full simulation, expected to be finished this week
• move to setup the full analysis framework for better optimiazation
• the processor on the new CEPC TDR geometry  has been debugged by Danning

Others

• prepared and gave a talk on nTGC at the SPCS meeting
• taking shifts

10:20 → 10:30 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

10:30 → 10:40 Status

Speaker: Zelin Yan (TDLI, SJTU)

10:40 → 10:50 Status

Speaker: Bai-Hong Zhou (TDLI, SJTU)

Finished:

• Xbb Calibration
  • Modified the easyjet git repo;
  • Generated the samples with systematics.
• ssWW Polarisation
  • Finished the pre for the umbrella meeting;
  • Pushed my codes to the ssWWjj_FastFrames;

Plan:

• Xbb Calibration
  • Obtain the mu results with systematics;
  • Modify the codes in the ZjetsCalib git repo and make a new MR;
• ssWW Polarisation
  • Modify the DSID sample list (for both MC20 and MC23);
  • Add the run3 CI check to the easyjet pipeline;
  • Take a look at one CR distribution;
• HWW QE;
  • Talk with Danning for the following tasks;
• Hy*y:
  • Begin with the Run3 workspace;

10:50 → 11:00 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

exotic Higgs:

Plan:

• milestone 1: BDT limit (Dec)
• 2: ACSI / foundation model

Kaili produced signal samples (running, reco PFO level): (Zee/mumu H2a4b, 15 ~ 60 GeV)

background sample from CEPC

1. Run jet reconstruction code (jet clustering / jet tagging)
2. Signal validation (hepmc vs reco, lepton / njet ..)
3. Systematics already provided  (JER~BMR~4%), other less  syst. are already in TDR
4. BDT, fitting code already ready.

DarkSHINE:

• Will continue edit positron paper draft (in this week)
• sterile neutrino:
  • step 1: calculate differential cross-section to estimate signal yield and sensitivity
  • long time didn't discuss with Yifan Chen. 
  • I think we should organize an afternoon to do the calcutation with Yifan Chen together.

Lin yang have some preliminary result, discussing with him.

Haven't discuss with ECAL/HCAL yet.

 

 

 

Fun thing:

11:00 → 11:10 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

DarkSHINE ECAL：

• We have measured the precision of our custom-designed front-end electronics under different signal amplitudes (6.5 mV–2.2 V). The data were collected using an oscilloscope with a 1 GS/s sampling rate. We are currently analyzing the data to evaluate the precision of this electronics design under different sampling rates. Based on the results and our precision requirements, we will determine the appropriate ADC model.

11:10 → 11:20 Status

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

1. DarkSHINE
   • Fixed a bug in DSimu related to the choice of target material: some hard-coded parameters in DarkPhoton.hh corresponding to Tungsten only
2. CEPC
   • The sample from the new CEPC TDR is almost ready
   • Next step: perform jet reconstruction and flavor tagging
   • The inspiration is to reproduce the previous result by December
3. ATLAS
   • AdCos shift

11:20 → 12:15 REU: Undergrad Research Discussions

11:40 Status

Speaker: Peixu Teng (SPA, SJTU)

11:50 Status

Speaker: Bingxian Li (SPA, SJTU)

12:00 Status

Speaker: Chang Liu (University of California San Diego)