Kun's weekly discussion with students

Wednesday 12 Jul 2023, 16:00 → 17:50 Asia/Shanghai

N642 (TDLI)

Tencent meeting room: https://meeting.tencent.com/dm/NXVVKc7PPZSs

Meeting number: 695-8098-7502

1 Introduction

General items.

Speaker: Prof. Kun LIU (TDLI/SPA, SJTU)

2 ATLAS ttWML and ttHML analyses status

Speaker: Nihal BRAHIMI (Tsung-Dao Lee Institute & Shanghai Jiao Tong University)

ttWML analysis status :

• Momentum ramping up again towards having the paper draft ready for the second circulation (severly limited by person power).
• The main outstanding items are: rerunning fits needed to fix discovered bugs in the truth OR (inputs ready but running last validation checks) and preparation of the inputs for the HEP data release.
• Collider Cross Talk on ttW is scheduled for tomorrow at CERN

ttHML analysis status:

• A lot of work is ongoing to meet the tight timescale of the analysis and be ready for an EB request in the next two weeks
• We had a dedicated discussion last week on the scope of the analysis and the inclusion of CP interpretations. We decided to not have a separate paper with optimized CP analysis but use the STXS setup with tH node for the interpretation with minimal setup
• Several fit setups in the 2lSS channel are being tested by Jialin adding all the available systematics. Technical issues encountered with the latest round of templates production and being sorted out
• An intermediate round of GN2 production (v0802) is being finalized. It is needed to test the impact on the MVA trainings of some ill defined variables inherited from ttW analysis. We took the opportunity to make the ntuples injection friendly. Work on the new GN1 v09 production is also ongoing.
• The ttHML INT note is being filled with the documented studies from different teams. Currently reviewing the latest updates from 2lSS team (to be discussed with Jialin and SDU group).

3 ATLAS ttH analysis

Speaker: Jialin Li

4 ATLAS photon ID efficiency & Zgamma analysis

Speaker: Kang Liu

data18_mc20e_convID.png

data18_mc20e_unconvID.png

I have found some problems: in TnP frameworks, the selection I calculate for FF is different from the selection for generating ntuple, which makes FF not fully applicable. so I need keep the selection same and rebuild electron ntuples.

5 DarkSHINE analysis general

Speaker: Yufeng Wang (TDLI)

axion model:

• 9 mass points with 2e5 stats produced.
• better signal efficiency comparing to dark photon model.
• similar sensitivity comparing to LDMX (if same EOT).

6 DarkSHINE tracker study

Speaker: Junhua Zhang

20230712-Junhua.pdf

7 Silicon strip sensor

Speakers: Hanqing Liu, Jialin Li, Junhua Zhang, Kang Liu, Yufeng Wang (TDLI)

8 Undergraduate students projects

Speakers: DIAN YU (School of Physics and Astronomy, Shanghai Jiaotong University), Lin Yang (TDLI)

230712.pdf

9 Non-academic items

Anything else?