CEPC Exotic Higgs Decay Discussion

2 Nov 2021, 10:00 → 7 Oct 2023, 21:20 Asia/Shanghai

Zhen Wang (TDLI)

Informal discussion for CEPC Exotic Higgs Decay 

Google slides:

https://docs.google.com/presentation/d/1eaV9q-DWSL80Q8Mj2eyIE-UpxoUqSlqJCN628EOzzMw/edit#slide=id.g10934d26e9f_0_6

Zoom reference :

https://cern.zoom.us/j/62268368742?pwd=dWZRVzJPN3JQcUlTaGR0YzdsMWRudz09
 

meeting id:622 6836 8742
password : 469284

• Discuss with Gang Li (and/or Manqi Ruan/Dan Yu)

• to see if anyone else in CEPC community working on 2e/mu/tau/q+4b final states, to learn their experience esp. on the bgds
• to see if there is jet multiplicity config. problem with the default reco. settings in CEPC software, this determines whether we need to regenerate bgd samples beside signal samples

• Invite Michael or his postdoc to give us a lecture about the theory behind their model, and how they get the sensitivity

• Xuliang to provide details about UFO file and validation (MadGraph independent running outputs vs theory calculation)

 

Tuesday, 2 November ¶

10:00 → 11:00 Status Report¶

Convener: Xuliang Zhu

Fig 1: legend font size

Fig 4: Add muon and electron lines

 

Table 2: comment out/remove 

 

Tuesday, 9 November ¶

11:00 → 12:00 Round table¶

Speakers: Elham E Khoda (University of Washington), Shu Li (TDLI/SJTU), Xuliang Zhu, Zhen Wang (TDLI)

Generator validation, and processor.pdf

 

• Discuss with Gang Li (and/or Manqi Ruan/Dan Yu)
  • to see if anyone else in CEPC community working on 2e/mu/tau/q+4b final states, to learn their experience esp. on the bgds
  • What should we use the number of jets for eekt algorithm? Why did we set the number to be 6? Can we just set a high number like 8 or 10?  Ask Gang about it.
  • Do we need to validate the delphes model? If yes then what kind of validation?
• Compare the eekt and anti-kt

  • ee-kt algo slide (will be discussed next week)

  • https://docs.google.com/presentation/d/1eaV9q-DWSL80Q8Mj2eyIE-UpxoUqSlqJCN628EOzzMw/edit?usp=sharing

• Process some more signal samples 

Tuesday, 23 November ¶

11:00 → 12:00 Round table¶

Speakers: Elham E Khoda (University of Washington), Shu Li (TDLI/SJTU), Xuliang Zhu, Zhen Wang (TDLI)

Slides sent by Ke: Related to CEPC jet calibration  

https://agenda.linearcollider.org/event/8217/contributions/44771/attachments/34967/54047/Jet_Requirement-LCWS.pdf

• Study eekt algorithm. Understand the exact definition of yij
• Submit jobs with different (3-4) njet configurations and verify that the results are consistent
• Collect information about the CEPC ZH analysis from the other groups
• Find the jet energy limitation of CEPC from experts

Exotic Higgs Decay paper (shared by Xuliang)

https://arxiv.org/abs/1612.09284

Tuesday, 30 November ¶

11:00 → 12:00 Round table¶

Speakers: Elham E Khoda (University of Washington), Shu Li (TDLI/SJTU), Xuliang Zhu, Zhen Wang (TDLI)

21-11-30_NJets.pdf

Update(1).pptx

Minutes for 2021-11-30:

Follow the study for exclusive ee-kt algorithm. 

Ask experts about the relation between number of jets and Yi,j.

Ask if there is any analysis in CEPC using exclusive jets, and what is the analysis.

Ask for ZH analysis' codes and study from their experience.

https://docs.google.com/presentation/d/1eaV9q-DWSL80Q8Mj2eyIE-UpxoUqSlqJCN628EOzzMw/edit?usp=sharing

 

Tuesday, 28 December ¶

11:00 → 12:00 Status Report¶

Fig 1: legend font size

Fig 4: Add muon and electron lines

 

Table 2: comment out/remove 

 

11:00 Xuliang¶

Speaker: Xuliang Zhu

LCFIplus algorithm

11:30 Zhen¶

Speaker: Zhen Wang (TDLI)

CEPC Higgs Exotic Decay.pptx

Tuesday, 4 January ¶

11:00 → 12:00 Status Report: Zhen¶

Convener: Zhen Wang (TDLI)

Fig 1: legend font size

Fig 4: Add muon and electron lines

 

Table 2: comment out/remove 

 

Tuesday, 11 January ¶

11:00 → 11:20 Update: Zhen¶

Speaker: Zhen Wang (TDLI)

CEPC Higgs Exotic Decay.pptx

Tuesday, 18 January ¶

11:00 → 11:20 Update: Zhen¶

Speaker: Zhen Wang (TDLI)

Exotic Higgs Decay.pptx

Tuesday, 8 February ¶

11:00 → 11:20 Update: Zhen¶

Speaker: Zhen Wang (TDLI)

Update_Zhen.pptx

• BDT:
  • Use 30GeV signal to optimize the BDT configuration
  • Include Ms into the training and set limit on BDT score (10 BDT)
• Systematic Study
  • Statistical uncertainty --TRExFitter
  • Fixed background –Ebony Zhang (Zhen gives the configs)
  • Event selection  --Xuliang Zhu
  • Flavor tagging –Elham (reference Yu Bai’s paper)
  • Lepton identification – reference 62 in Yu Bai’s paper
  • Luminosity – Xuliang Zhu Ref.62 in Yu Bai’s paper

Tuesday, 15 February ¶

11:00 → 11:20 Update¶

Speaker: Zhen Wang (TDLI)

Update_Zhen.pptx

Lepton ID in CEPC: https://arxiv.org/pdf/1701.07542.pdf

Lumi uncertainty: https://arxiv.org/pdf/2105.06245.pdf

 

11:20 → 11:40 Update¶

Speaker: Ebony Zhang

Report_150222.pptx

11:40 → 12:00 update¶

Speaker: Xuliang Zhu

systematics

Tuesday, 22 February ¶

11:00 → 11:20 Updates¶

Speaker: Zhen Wang (TDLI)

Update.pptx

11:20 → 11:40 Updates¶

Speaker: Ebony Zhang

Report_220222.pptx

11:40 → 12:00 Updates¶

Speaker: Xuliang Zhu

google slide

Tuesday, 1 March ¶

11:00 → 11:20 Update¶

Speaker: Mr Zhen Wang (TDLI)

Update.pptx

11:20 → 11:40 Update¶

Speaker: Ebony Zhang

Tuesday, 8 March ¶

11:00 → 12:00 Status Report: Update of the paper draft¶

Conveners: Ebony Zhang, Elham E Khoda (University of Washington), Xuliang Zhu, Mr Zhen Wang (TDLI)

Fig 1: legend font size

Fig 4: Add muon and electron lines

 

Table 2: comment out/remove 

 

Tuesday, 15 March ¶

11:00 → 12:00 Status Report: Updates on the paper draft¶

Convener: Elham E Khoda (University of Washington)

Fig 1: legend font size

Fig 4: Add muon and electron lines

 

Table 2: comment out/remove 

 

Tuesday, 22 March ¶

11:00 → 11:20 Status of paper submission¶

Speaker: Elham E Khoda (University of Washington)

exotHiggs_21mar2022_Elham.pdf

Tuesday, 29 March ¶

21:00 → 21:20 Discussions¶

Speaker: Elham E Khoda (University of Washington)

Tuesday, 5 April ¶

21:00 → 21:20 Jet energy Resolution¶

Speakers: Xuliang Zhu, Zhen Wang (TDLI)

List.pptx

Tuesday, 12 April ¶

21:00 → 21:20 Update¶

Speaker: Xuliang Zhu

Tuesday, 19 April ¶

21:00 → 21:20 Update¶

Speaker: Xuliang Zhu

EventDisplay.pptx

Tuesday, 3 May ¶

21:00 → 21:20 Dicussion¶

Speakers: Xuliang Zhu, Mr Zhen Wang (TDLI)

May3.pptx

Tuesday, 10 May ¶

21:00 → 21:20 Update 2j¶

Speaker: Mr Zhen Wang (TDLI)

Update.pptx

Tuesday, 17 May ¶

21:00 → 21:20 Updates¶

Speaker: Mr Zhen Wang (TDLI)

Xuliang: The IsolatedLeptonFinderProcesser in FSClasser can't read MCParaticle. Run z->veve, h->ss->bbbb,  input MCParticle to LCFIPlus directly, without FSClasser-IsolatedLeptonFinderProcesser

Tuesday, 24 May ¶

21:00 → 21:20 Disucssion¶

Speaker: Mr Zhen Wang (TDLI)

Study of Electroweak Phase Transition in Exotic Higgs Decays with CEPC simulation.pdf

Study of Electroweak Phase Transition in Exotic Higgs Decays with CEPC simulation.pptx

Wednesday, 1 June ¶

21:00 → 21:20 Future plan discussion¶

Speaker: Mr Zhen Wang (TDLI)

Wednesday, 15 June ¶

21:00 → 21:20 Update of 2Jet analysis¶

Speaker: Mr Zhen Wang (TDLI)

Update_Exotic_Higgs.pdf

Wednesday, 22 June ¶

21:00 → 21:20 Discussion¶

Speaker: Xuliang Zhu

Wednesday, 29 June ¶

21:00 → 21:20 Discussion¶

Speaker: Mr Zhen Wang (TDLI)

Update.pdf

Wednesday, 6 July ¶

21:00 → 21:20 Updates¶

Speaker: Mr Zhen Wang (TDLI)

21:20 → 21:40 Updates¶

Speaker: Xuliang Zhu

Wednesday, 10 August ¶

21:00 → 21:20 Updates¶

Speaker: Xuliang Zhu

JER_Aug10.pdf

Wednesday, 8 February ¶

21:00 → 21:20 JER Discussion¶

Speaker: Xuliang Zhu

Introduction.pdf

JER-Feb08-xuliang.pdf

Wednesday, 15 February ¶

21:00 → 21:20 JER systematics¶

Speaker: Xuliang Zhu

BDT-Feb15-xuliang.pdf

XGBDT.pdf

Wednesday, 22 February ¶

21:00 → 21:20 Paper Discussion¶

Speaker: Zhen Wang (TDLI)

MLs_Zhen.pdf

21:20 → 21:40 JER&BDT Updates¶

Speaker: Xuliang Zhu

Wednesday, 1 March ¶

21:00 → 21:20 Adaboost¶

Speaker: Zhen Wang (TDLI)

Wednesday, 8 March ¶

21:00 → 21:20 Paper Status¶

Speaker: Zhen Wang (TDLI)

LGBM_optuna.pdf

Wednesday, 15 March ¶

21:00 → 21:20 Paper Submission¶

Speaker: Zhen Wang (TDLI)

CEPC_ExoticsHiggs_Journal.pdf

Wednesday, 29 March ¶

21:00 → 21:20 Paper Submission¶

Speaker: Zhen Wang (TDLI)