Possible feature for Delphes inputs

[chekanov]

Hello,

To support more inputs for Delphes in the key4hep, it would be good to provide inputs in the form of ProMC files used in https://atlaswww.hep.anl.gov/hepsim/

This requires a few steps:

• Install ProMC file format https://atlaswww.hep.anl.gov/asc/wikidoc/doku.php?id=asc:promc:installation somehere in Key4hep
• Make sure $PROMC environmental variable is available (after installation). I tested the intallation - it works fine.
• Recompile Delphes (do "configure" first). Delphes script automatically will pick up the variable $PROMC and will create DelphesProMC binary file. Then one can create DelphesPROMC_EDM4HEP.

best, Sergei

[tmadlener]

Hi Sergei,

We are of course open to add new input formats and are happy to provide support in doing so. However, given our other constraints we will only be able to do that in a limited capacity and most of the actual work would have to be done by someone else.

In order to get ProMC inputs for k4SimDelphes, I see the following steps that would need to be taken (roughly in this order):

• Make ProMC available via spack, such that it can be easily put into the nightly builds
• Make ProMC easily consumable by CMake. Does standalone Delphes already support ProMC in its CMake configuratoin? In that case, this might already be solved
• Implement the ProMC reader also for k4SimDelphes

The last point is necessary, because we introduce a reader interface in k4SimDelphes that we didn't yet manage to upstream to Delphes (lack of time from our side).