Shu's weekly group discussion

Wednesday 5 Nov 2025, 10:00 → 13:00 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://cern.zoom.us/j/4042031778

10:00 → 10:10 Status

Speaker: Kang Yu (TDLI, SJTU)

1. I have finished studying nuclear physics, which would help save more time in the future.
2. I completed learning finite group representation theory. 
3. Now I am reviewing the course on quantum field theory, and considering devoting more time back to research gradually.

10:10 → 10:20 Status

Speaker: Linjing Duan (TDLI, SJTU)

CEPC Zvvy nTGC

• test the script for Ntuple production
• example histograms of Missing_E (key observable) from Standard Model samples are shown,
• cross-check with Danning, then produce Ntuples for all signal samples as preparation for further analysis and optimization

Hyy*

• New nominal MxAOD (signal and bkg) productions with new FFs are produced and downloaded.
• start to rerun background modeling this week

10:20 → 10:30 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

weekly update 51125.pptx

10:30 → 10:40 Status

Speaker: Zelin Yan (TDLI, SJTU)

燕泽林-博资考面试.pptx

10:40 → 10:50 Status

Speaker: Bai-Hong Zhou (TDLI, SJTU)

2025_11_05.pdf

10:50 → 11:00 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

slides

11:00 → 11:10 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

DarkSHINE ECAL

• A laser diode was used in place of a particle source and crystal to test the SiPM + front‑end electronics for precision across different signal amplitudes and baseline stability ; results for two AC‑coupling configurations (1 nF vs. 100 μF) were compared.
  • 100 μF coupling shows larger baseline drift; but the effect on small‑signal measurement is minor (~5%)
  • 1 nF configuration requires ≥100 MS/s sampling rate
  • 100 μF configuration requires ≥80 MS/s.
• Next: We will validate the electronics design using the exist ADC readout board with 125 MS/s and 62.5 MS/s from USTC

Analysis

• Plan to involve pn_ecal process into BDT analysis

11:10 → 11:20 Status

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

DarkSHINE:

• Debugging DSimu (disucssing with Xuliang) for the signal process when the target material is changed from W to other elements
• Making preparations for the DarkSHINE winter mini-tutorial, the date is fixed for November 8

CEPC:

• Working with Xuliang for the jet reconstruction using JOI and jet tagging using PrimeTagSvc

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

11:40 Status

Speaker: Peixu Teng (SPA, SJTU)

1. Still struggling with QFT. Now is at quantization in spinor fields.
2. Going to write a document to fix a bug about a compatibility issues between the new version runtime library and the old version code in mathematica. I asked Chen Yifan about this problem but it still needs to make some changes.
3. Next step i want to do is finding how to use the files outputed before to generate the simulated samples.

11:50 Status

Speaker: Bingxian Li (SPA, SJTU)

12:00 Status

Speaker: Chang Liu (University of California San Diego)