Kun's weekly group discussion

Wednesday 20 Dec 2023, 13:30 → 15:00 Asia/Shanghai

Tsung-Dao Lee Institute/N5F-N530 - Discussion Room (Tsung-Dao Lee Institute)

DarkSHINE tracker, analysis and simulation

1 Tracking detector R&D

Speaker: Kang Liu

• 接地线更换、牵到二楼强电间：本周四
• 强电间接地端子安装：元旦前

2 Tracking reconstruction

Speaker: Junhua Zhang

20231220-Junhua.pdf

Next to do:
1. 继续整理fitting算法;
2. 将fit结果的（l0 l1 角度 q p）这套坐标和初始的truth hits展示到一起
3. 优化seeding算法, 包括参数配置和算法名称等.

3 Simulation and analysis

Speaker: Yufeng Wang (TDLI)

• signal efficiency drop in baseline 1.6 due to 1 track cut -> failed reconstruction -> too many hits -> increased tracker thickness.
• updates in DAna config yesterday:
  • Tracking.skip_hits_geq = 20 --> 40
  • + Tracking.remove_hit_less_E = 0.02 (MeV; nolonger considered as a hit)
• re-running reconstruction as a cross check.

ATLAS performance and physics

4 ttW/ttH -> multi-leptons analysis

Speaker: Jialin Li

2023_1220_KunGroup.pdf

5 Electron/photon performance, H->Zgamma and gg* analysis

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

Kang: 

H->Zy Analysis:

H2Zg framework rel24 has been run through. The sample used here is DAOD which is derived from ‘mc21_13p6TeV.601709.PhPy8EG_PDF4LHC21_ggH_MINLO_Zllgamma.recon.AOD.e8472_s3873_r13829’.

Currently I'm trying to do the event categorisation, and draw the kinetic distribution.

 

6 Round table

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

 background simulation of pp->h_2->h_1h_1 with  b¯bγγ/4l final states:

-monte carlo sim. samples practices.

-to do: run through  13 TeV ATLAS analyses.