Comments and discussion following the introductory slides:
* PhD theses and analyzes: Cécile will focus on the "ex-situ" method since it works better with very little data and since CPPM is involved in the b-tagging calibration with dijet events (system 8 method). Yu-Jie is currently working on lepton ID/trigger and will start working on the "in-situ" tag counting method at some point.
* Electron reconstruction and trigger: L.V. points out that there is also some expertise on this at Marseilles. Possibility to collaborate on this item.
* Discussion of possible tasks to be looked at in the near future:
  - Possibility/need to re-do the tag counting method ("in situ" calibration) at 6, 8, 10 GeV.
  - QCD background: The Tevatron methods can be recycled at ATLAS but with some adjustments. The D0 "matrix method" is being developed for ATLAS but there is still a lot of work to do.
  - ISR/FSR: Currently the main source of uncertainty. How are we going to control this systematic uncertainty? An English group has shown interest on this last July but no result yet.
  - Luminosity: it should be given to the Top group so this is not a task for us, even though it would be good to understand how it is done.
* Analysis data format: Eventually we should converge toward a common data format. Agreement that in the end we will most certainly do the analysis on a flat ntuple 
* We agreed to meet about once a month in the beginning. Next meeting: Th. Feb. 26 at 11:00.