Choose timezone
Your profile timezone:
Pseudo-observables: from LEP to LHC
Description
For the first half day lectures on the use of pseudo-observables (PO) at LEP are planned. The rest of the time will be used for in depth sessions using the black board for detailed explanations and discussions. Below is a tentative list of topics for the in depth sessions:
1) POs@Lep, the role of the Z-pole.
2) Running of the parameters and gauge invariance,
Lep guidance: the case of alpha_QED.
3) TH ``options" and their role, e.g. the blue band.
Limitations of the Model Independent (MI) approach,
the role of the SM remnant.
4) The kappa-framework: origin and problems.
5) The role of EFT in resetting the kappa-framework.
6) How to write observables in the kappa-EFT approach.
7) Limitations of the EFT.
8) The kappa-framework for BSM models (Singlet, THDMs, etc).
9) On-shell and off-shell for LHC physics. The role of gauge
invariance, definition of Signal. What is the problem
with unstable particles?
10) How to define ``simple" quantities without destroying
internal consistency:
- production cross sections (ggH, VBF)
- partial decay widths (with/without QED/QCD?)
- asymmetries
- off-shell events
- etc.
Why off-shell is problematic and why one should not take derivatives.
11) How to treat the Background (e.g. in the kappa-framework).
12) From kappas to POs, a tentative list of POs.
13) How to ``insert" POs into Fiducial Observables (FOs).
14) Who should provide POs?
15) Who should provide interpretation of POs, e.g. using LO EFT, NLO EFT, BSMs?
16) POs as a way to ``compress" results. LHC legacy.
17) Beyond the SM, from the predictive (SM) phase to the ``partially predictive (fitting)" one.
18) TH uncertainties, not only QCD
Registration is not mandatory, but helpful for the planning. So please press register if you want to participate.
Webcast
There is a live webcast for this event
