CERN Key4hep Discussion
===

Attendees: Andre, Juan, Swathi, Leonhard

Apologies: Mateusz

Date: November 26, 2024

## News

* Conferences/Workshops you would like to attend next year?

* FCC Physics workshop at CERN (January)
* FCC week in Vienna (May)
* ESPPU in Venice
* AIDAinnova Prague (March or May)
* EPS-HEP (July, Marseille)

* EP RnD Software Report has to be written
    * See Ep RnD software meeting slides

## Round The Table

### Swathi

* Pandora Calibration for Allegro
    * Muon energy is not showing a single peak
    * Depends on sensitive thicknesses? Only first layer different? Block first layer and see, show for each layer?
* ICHEP proceedings review treated, submitted, and closed

* FCC Full Sim meeting: https://indico.cern.ch/event/1481286/

### Leonhard

* Optimising Optimal Observables
    * Found a way to validate that the wrapper around FORTRAN is correct, reproducing table from publication
    * Did not manage to extract couplings from observables, no clear source errors found yet
* Tomorrow starts Collider Physics German Strategy workshop

### Andre

* NTR

### Juan

* Added some packages to the stack: generators, hepmc python bindings, scikit-hep also python bindings
* PRs for podio: 
    * fixing the reading of multiple files with RNTuple (never worked)
    * TChain equivalent called something like processor, but this does not allow random access, only sequential reading.
        * The backend needs something that does random access

* Going back to ACTS soon

## AOB

## Next Meeting

December 3, 2024

## TODO