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Rebuild of CSSKGParticleFlowObjects and removal of the charged/neutral separated containers of FTAG1 derivation

Ines Combes requested to merge icombes/athena:CSSKG_merging into main

MR to implement the changes suggested in this mattermost thread in order to get the links to calo clusters in DAODs (after derivation):

  • introduce a wrapper in the DerivationJetEtMiss package to implement a function (written by @delsart) that can be used to rebuild the CSSKGParticleFlowObjects container which has the links to the calo clusters.
  • removal of CSSKGChargedParticleFlowObjects/CSSKGNeutralParticleFlowObjects in FTAG1.py derivation and in ContainersOnTheFly.py (revert this MR). This is required to be able to use the function (that is described in the previous point) in the FTAG tool training-dataset-dumper since the function is creating these containers on the fly during the rebuilding. This MR is related to this training-dataset-dumper MR which will use this function and this version of DAODs without CSSKG containers.

This MR is also related to this JIRA ticket opened by @dguest, which emphasizes the 2 possible workarounds to access the calo clusters in the current version of athena.

Tagging @tstreble, @dguest, @lcadamur.

Edited by Ines Combes

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