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[Sphenix-tracking-l] Something is not right with how the TPC geometry is handled

From: "Pereira Da Costa, Hugo Denis Antonio" <hugo.pereira-da-costa AT lanl.gov>
To: "sphenix-tracking-l AT lists.bnl.gov" <sphenix-tracking-l AT lists.bnl.gov>
Subject: [Sphenix-tracking-l] Something is not right with how the TPC geometry is handled
Date: Fri, 26 May 2023 16:16:35 +0000

Tristan and I have been trying to run TPOT clustering on Micromegas from PRDF

This fails.

To run clustering we need the detector geometry (from PHG4Geom objects) and MakeActsGeometry

This requires that all geometry is properly built and all the CylinderGeom (in particular CylinderCellGeom_SVTX, from the TPC), are present and filled, in order not to crash.

The problem is that this node is created (and filled) only in PHG4TpcElectronDrift, which we obviously should not run on real data.

We think that the TPC geometry and relevant nodes should be created elsewhere for ACTS to be able to process real data. For instance inside PHG4TpcDetector. This implies moving around the creation of the CellGeomNode creation, as well as the initialization of the TpcPadPlaneReadout.

Did we get that right, or missed something ?

Opinion ? Comment ?

Tristan and I will hack something locally to try to get going, and might report back

Hugo

[Sphenix-tracking-l] Something is not right with how the TPC geometry is handled, Pereira Da Costa, Hugo Denis Antonio, 05/26/2023
- Re: [Sphenix-tracking-l] Something is not right with how the TPC geometry is handled, pinkenburg, 05/26/2023
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      - Re: [Sphenix-tracking-l] [EXTERNAL] Re: Something is not right with how the TPC geometry is handled, Pereira Da Costa, Hugo Denis Antonio, 05/27/2023