Shu's weekly group discussion

Wednesday 3 Sept 2025, 13:00 → 16:30 Asia/Shanghai

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

点击链接入会，或添加至会议列表：

https://meeting.tencent.com/p/7659960274

#腾讯会议：765-996-0274

会议密码：2025

13:30 → 13:40 Status

Speaker: Kang Yu (TDLI, SJTU)

group report 2.pptx

13:40 → 13:50 Status

Speaker: Linjing Duan (TDLI, SJTU)

Zvvy nTGC @ CEPC

• generated the SM sample with full sim
• Some SM sim jobs get stuck randomly, write a script to kii & resubmit failed jobs
• Expected to finish this week

Hyy* 

• Spurious signal test (same fit range[110,160]GeV and standard)
  • previous results:
    • bkg distribution: lowmass ll only: mc23e μμ is FS, rest are AF---only c0/c3/c4/c6 failed
  • latest results:
    • bkg distribution: lowmass ll only: both are AF---all cates passed

• The bkg-only fit shows a mismatch between the MC template and the data. example: c4

• Compared with Rui's results: 
  • Except for c4, his result failed.
  • Other cates passed with consistent functions and similar values.
• Summary:
  • SS tests improves after switching to the AF sample.
  • But the mismatch needs to be fixed, e.g. by adding other backgrounds.

13:50 → 14:00 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

14:00 → 14:10 Status

Speaker: Zelin Yan (TDLI, SJTU)

Zelin_weekly.pptx

14:10 → 14:20 Status

Speaker: Bai-Hong Zhou (TDLI, SJTU)

Finished:

• ssWWjj Polarisation:
  • Submitted data17 with rel21 grid job (using PxAOD for comparison with rel22);
  • Split YAML file for mc20 and mc23 sample production in easyjet
  • Modified codes in FastFrames.
• HWW QE:
  • Submitted ntuple production for trigger study with the latest TopCPToolkit;
    • Sig: ggF_HWW and VBF_HWW;
    • Bkg: Ttbar, Zjets (including Ztautau, Zee, Zmumu and Znunu ) WW;
    • These ntuples would be used for trigger study and object definition.

Plan:

• ssWWjj Polarisation:
  • Perform event-by-event cutflow validation to understand why rel22 yields are higher than rel21;
  • Clean up ssWWjj codes in easyjet and produce samples with systematics;
  • Implement charge-flip in FastFrames.
• HWW QE:
  • Build the workflow for the trigger study using the Fastframes.
• Xbb Zbbj Calibration:
  • Determine the trigger list we would use for Zbbj Calibration.
  • Add the systematics in mu post-tag fitting.

14:20 → 14:30 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

DarkSHIN

• Baseline 1.6 validation [link]: Will discuss with Rui Yuan,  Chunxiang Zhu, Yifan Zhu, Kun's students... to do background estimation, calculate significance change by detector, detector performance...
  • Signal sample production
  • Finish background estimation code
  • Tracker study (reconstruction algorithm performance...)
  • HCAL study
• Positron: polishing figures

    What's the plan of sterile neutrino?

FPGA:

• Will discuss with Qibin about FPGA abstract
• Working with Bingxian: training a ECAL Clustering model for the BDT input
  • [Done] Training code preparation (Bingxian)
  • Plan:
    • DAna Dataset generation (Xuliang)
    • Quantization-aware-training
    • Better truth labeling strategy
    • FPGA implementation

14:30 → 14:40 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

14:40 → 14:50 Status

Speaker: Ngoc Khanh Vu (TDLI, SJTU)

Run-3 ggHyyD:

• 1st EB meeting done. EB are reading the note in a few days, waiting for comments.
• start working on the new MC23d ntuples for the stat analysis. MC23e in preparation.

HWW QE: working with Baihong for ntup production

Others: taking shifts

14:50 → 15:00 Status

Speaker: Rui Yuan (TDLI, SJTU)

DarkSHINE:

Presented a summary report for hardware test results and plan, handover all the things to Chunxiang, writing paper

Hyy*:

Check Linjing's and Danning's results and fix the issue, cross check with the statistic analysis results, and use sensitivity to check bkg  modeling fit range, reading and update the note, prepare for first EB

15:00 → 15:10 Status

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

• DarkSHINE
  • Developed the Bayesian Optimization code
  • Next: run the code on the cluster
• CEPC
  • Requested IHEP computing account
  • Looking into Danning's code to adopt it for the new CEPC software

15:10 → 16:00 REU: Undergrad Research Discussions

15:30 Status

Speaker: Peixu Teng (SPA, SJTU)

15:40 Status

Speaker: Bingxian Li (SPA, SJTU)