feat: persist ACTS barcodes in G4 sim

[andiwand]

particle barcodes did not make sense after G4 sim because they were just counted upwards without paying attention to the semantics of the bits in the barcode.

this pr adds persistence to the barcodes by storing a mapping in the G4 specific event store. also the particle generation counter is increased with each secondary process

[github-actions]

📊 Physics performance monitoring for 2f172d3

Full report
Seeding: seeded, truth estimated, orthogonal
CKF: seeded, truth smeared, truth estimated, orthogonal
IVF: seeded, truth smeared, truth estimated, orthogonal
Ambiguity resolution: seeded, orthogonal
Truth tracking
Truth tracking (GSF)

Vertexing

Vertexing vs. mu

IVF seeded

IVF truth_smeared

IVF truth_estimated

IVF orthogonal

Seeding

Seeding seeded

Seeding truth_estimated

Seeding orthogonal

CKF

CKF seeded

CKF truth_smeared

CKF truth_estimated

CKF orthogonal

Ambiguity resolution

seeded

Truth tracking (Kalman Filter)

Truth tracking

Truth tracking (GSF)

Truth tracking

[benjaminhuth]

Very nicely done! I think we're getting closer to make Geant4 a drop-in replacement of FATRAS!

[codecov]

Codecov Report

Merging #1842 (2f172d3) into main (d18a2e5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1842   +/-   ##
=======================================
  Coverage   49.50%   49.50%           
=======================================
  Files         407      407           
  Lines       22646    22646           
  Branches    10334    10334           
=======================================
  Hits        11210    11210           
  Misses       4247     4247           
  Partials     7189     7189           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[pbutti]

Just to confirm: I suppose this fixes these errors?

10:08:01    RootTrajecto   WARNING   Truth particle with barcode = 37 not found!
10:08:01    RootTrajecto   WARNING   Truth particle with barcode = 2 not found!
10:08:01    RootTrajecto   WARNING   Truth particle with barcode = 2 not found!
10:08:01    RootTrajecto   WARNING   Truth particle for mj 17 subtraj 0 not found!
10:08:01    RootTrajecto   WARNING   Truth particle with barcode = 73 not found in the input collection!
10:08:01    RootVertexPe   INFO      Total number of reco track-associated truth particles in event : 0
10:08:01    RootVertexPe   INFO      Total number of reco track-associated truth primary vertices : 0

[andiwand]

yeah exactly @pbutti. the particle IDs haven't been persistent until now which confuses all the performance writers

we may also need a particle selector after the simulation because most of the secondary particles will not be reconstructible and will currently ruin all the performance results (as discussed with @paulgessinger yesterday)

[asalzburger]

Hi, looks like this needs an update of the reference for the Geant4 example - not surprising.

[andiwand]

makes sense - should be fixed now