LCVision - Meeting with Global Interpretation Team

Monday 27 Jan 2025, 08:00 → 09:00 Europe/Zurich

Roman Poeschl is inviting you to a scheduled Zoom meeting.

Topic: LCVision - Physics Part
Time: This is a recurring meeting Meet anytime
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Meeting ID: 681 6574 0245
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Meeting ID: 681 6574 0245

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Meeting ID: 681 6574 0245
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Present: Jorge, Jenny, Michael, R.P.

• Important to define the centre-of-mass energies that will contribute to the fit and the BSM scenarios for projection
  • by default cm energies are 90, 250 GeV, tt-mass, 550 and 1 TeV, what would be CLIC energies?  
  • Orientation at PPG proposals for BSM
• Global fit will need input very soon, will launch call 
• Systematic and statistical errors
  • Estimate of impact of systematic errors
    • Which experimental systematics to be taken into account, e.g. polarisation, b-tagging lumi?  
    • These were used in 20127 by Jenny, Michael, Junping et al., see https://arxiv.org/pdf/1708.08912
• top quark input should assume 500 (550) GeV and 1 TeV
• Fit will include 2f off the pole 
  • Input for b, c, s will come from IFIC/IJCLab group
  • Check with Taikan for leptons
• Global fit will contain partial NLO SMEFT
  • 1 loop for ee->ZH 
  • tree level for ee->WW and ee->tt
• Global fit should contain latest resuts of double Higgs study by Jenny et al. 
• For the interpretation the presentation is important since the colorful Manhattan plots are often not very conclusive (attractive) in particular when more and more observables enter the fit
• For completeness I add three bullet points from my notes of which I don't remember anymore the context
  • "Nachtmann/Diehl paper"
  • "Coupling <-> partial width" maybe to underline the connection between these quantities
  • "Four separate plots" (in context with "Coupling <-> partial width"