Shu's weekly group discussion

Wednesday 5 Aug 2026, 10:00 → 13:35 Asia/Shanghai

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

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

Online Zoom meeting room:

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

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

10:00 → 10:05 Introduction & Announcements

10:05 → 10:10 Status

Speaker: Zhijing Zhang (TDLI, SJTU)

[Today's focus:]

[DarkSHINE]:

• Analyzed and fitted the SiPM single photoelectron gain data at several temperature points under the nominal bias voltage. 

[Plans:]

[DarkSHINE]:

• I will try to present the complete gain dependence on temperature and bias voltage separately in the next one or two weeks.

10:10 → 10:20 Status

Speaker: Kang Yu (TDLI, SJTU)

10:20 → 10:30 Status

Speaker: Linjing Duan (TDLI, SJTU)

[ZZy]

Finished

• Prepared the initial Sherpa 3 JobOption for the Run-3 ZZγ sample, based on the Run-2 physics definition.
• Completed the 13.6 TeV technical tests and produced a reusable gridpack for the future central production.
• Successfully generated and validated a 5000-event EVNT sample using the gridpack.
• Checked the EVNT integrity and event weights, and produced preliminary truth-level distributions for the photon kinematics, lepton multiplicity, m4ℓ​, and m4ℓγ​ as an initial sanity check.
• The leading-photon pT​ distribution starts from the 10 GeV generation threshold, is dominated by low-pT​ photons, and shows a continuous highpT​ tail without obvious pathological features. 

Plans

• Refine the truth-object definition and prepare the full set of validation distributions.
• Produce the corresponding Sherpa 3 sample at 13 TeV and compare it with the official Run-2 Sherpa sample.

10:30 → 10:40 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

• Icepak Thermal Simulation & Cross-Validation

           Simulated the full ECAL prototype in Ansys Icepak and cross-validated the results against COMSOL.
 

• ECAL  prototype Energy Resolution

           Analyzed existing ECAL datasets to evaluate energy resolution.

 

10:40 → 10:50 Status

Speaker: Zelin Yan (TDLI, SJTU)

[Today's focus:]

• Wlllv analysis: 
  • Fisrt try remove nonprompt samples into training: data/mc comparison shows good agreement but AUC is low, maybe not learn some useful information. 
  • Check mismodeling by different flavour: not show flavour dependence.
• H2a4b analysis: 
  • Finished all mc23ade LLP 2a4b ntuples generation.
  • 2 of them are missing:  mc23_13p6TeV.604883.PhPy8EG_ggZllH_H125_semi_a30a30_4b_ctau1.deriv.DAOD_PHYS.e8557_a910_r15540_p7017 & mc23_13p6TeV.604887.PhPy8EG_ggZllH_H125_semi_a60a60_4b_ctau1.deriv.DAOD_PHYS.e8557_a910_r15540_p7017

[Next plans:]

• Wlllv analysis: 
  • Cross check with DNN.
• HGTD FELIX Monitoring: 
  • Add more vars into monitoring due to OPCUA server design change. 
• H2a4b analysis: 
  • Have a look on LLP samples kinematics in SR and Z+jets light flavour CR.
  • Check DAOD missing issue.
     

10:50 → 11:00 Status

Speaker: Bai-Hong Zhou (TDLI, SJTU)

[ssWW]:

• Launched the new nominal sample generations (still check new sherpa3 polariszed samples);

[DarkSHINE FastSimu]:

• Produced preliminary Fast Simu results;
  • Good for energy deposition, while still bad for shower shape;

Plans: 

 

[ssWW]:

• Wait for the nominal samples production finished;
• Produce the full systmatics samples once the easyjet codes cleaning are done; (would cost too much disk quota to store all the systematic samples);
• Try some stratogies to improve the ParT performance;

[DarkSHINE FastSimu]:

• Try some strategies to improve the calo-VQ performance;

[HWW QE]:

• Learn the Hypothesis test strategy in HZZ QE;
• Train the EveNet with the new input samples;

11:00 → 11:10 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

11:10 → 11:20 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

11:20 → 11:30 Status

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

11:30 → 11:40 Status

Speaker: Matthias Tartarin (TDLI, SJTU)

---

Today's focus: 

[ZZy]:

• Organising the start of the analysis and the plans on the long term.

[VBS_Kappa ]:

• Continued the direction explored previously. Presented the current status to the team.
• Indico page has been created to make the meetings more formal, following Prof. Li's guidance.
   

---

Plans: 

• [VBS_Kappa] Will focus on the modification of the g_HWW coupling modification, as Prof. Xie also indicated this could be a good next step.
• [ZZy] Plan to continue organising items following what is left to do; Discuss with Linjing the plans on the next weeks to not miss on next important meetings.

 

11:40 → 12:35 REU: Undergraduate Research Discussions

11:40 Status (w/ Linjing&Danning)

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

11:50 Status (w/ Haydar)

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

12:00 Status (w/ Matthias&Baihong&Xuliang)

Speaker: Ardijan Lorant Ferati (Eberhard Karls University of Tübingen (DE))

12:10 Status (w/ Xuliang)

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