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[Sphenix-software-l] Where (if anywhere) is truth particle id stored in PH4Ghits?

From: David Stewart <0ds.johnny AT gmail.com>
To: sphenix-software-l AT lists.bnl.gov
Subject: [Sphenix-software-l] Where (if anywhere) is truth particle id stored in PH4Ghits?
Date: Tue, 12 Apr 2022 11:00:59 -0400

Hi all,
I looking and grepping through code (mostly /coresoftware/simulation/g4simulation/g4tpc and ../g4intt) and through sPHENIX Doxygen. I wish to map PH4Hit‘s to the associated truth PHG4Particle’s. However, the input is the PH4HitContainer on the node tree, which is iterated through in various ::process_event() files, but I cannot seem to find, either (a) the method to pull a Geant4 particle id from the PHG4HitDefs or PHG4Hit* (the iterated pairs of the PHG4HitContainer) or (b) the location which fills the PHG4HitContainer in the first place.
Any pointers would be greatly appreciated,
Thanks,
Dave

[Sphenix-software-l] Where (if anywhere) is truth particle id stored in PH4Ghits?, David Stewart, 04/12/2022
- Re: [Sphenix-software-l] Where (if anywhere) is truth particle id stored in PH4Ghits?, Christof E Roland, 04/12/2022