Kun's weekly group discussion

Wednesday 6 Mar 2024, 13:30 → 15:00 Asia/Shanghai

Tsung-Dao Lee Institute/N5F-N531 - Discussion Room (Tsung-Dao Lee Institute)

13:30 → 14:00 DarkSHINE tracker, analysis and simulation

13:30 Tracking detector R&D

Speakers: Dian YU (Tsung-Dao Lee Institute), Kang Liu, Lin Yang (TDLI)

Kang:

Yang Lin, Yu Dian, Junhua and I did the CV test and became familiar with the entire test process. The capacitance test results of DarkSHINE sensor and USTC sensor are both lower than the previous results, about 1 order of magnitude. The specific reasons are still under investigation.

Regarding the problem that the DarkSHINE sensor is easily damaged: In addition to the structure of the sensor, it may be related to the excessive force used to insert the needle. As a result, the dielectric layer is easily damaged and short-circuited. For future testing, especially for DarkSHINE's sensor, the probe just needs to be in contact.

I have revised the draft: https://www.overleaf.com/project/6358f9a7b0a739132047752e. Added detailed description of signal to position distribution plot, about 250 words.

 

 

13:40 Tracking reconstruction

Speaker: Junhua Zhang

The previous method of "changing the initial direction of the Propagator-iterator by changing 3-momentum" in tagging reconstruction cannot be reproduced in the recoil area. 
Specifically, the reconstruction efficiency is almost 100%, but the momentum distribution is completely inappropriate.

To do:

The Cartesian coordinates of truthHit and truthParticle are now rotated and then reconstructed directly

 

13:50 Simulation and analysis

Speaker: Yufeng Wang (TDLI)

14:00 → 14:30 ATLAS performance and physics

14:00 ttW/ttH -> multi-leptons analysis

Speaker: Jialin Li

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1.  Do the fit using new conversion CRs and no big difference in results.
2. Help validate the new injection method for our GFW2 which can save lots of time.
3. Update the latest results on Int note.

14:10 Electron/photon performance, H->Zgamma and gg* analysis

Speakers: Danning Liu (TDLI/SJTU), Kang Liu, Rui Yuan (SJTU)

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Kang:

Photon ID with EE

I submitted the root file for combine.

H to Zy analysis

I generated almost all ggF signal ntuples, except for a few failed jobs.

I asked MingXu and he gave me a script for submitting grid job as a reference and I'm trying it.

 

 

 

14:30 → 14:50 Round table

Speakers: Dian YU (Tsung-Dao Lee Institute), Lin Yang (TDLI), Zhiyang Dai

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C4_test.png

Lin:

1. tracker test: C4 test graph revisited, B2 graph.
2. test readme: Standard Operating Procedure diagram and operation document ongoing.
3. di-boson updates: 2 articles more, need to be summarized.