ACTS tracking with B0 trackers

Is your feature request related to a problem? Please describe. When running reconstruction, getting the following error

[2022-12-24 12:05:38.657] [JEventProcessorPODIO] [debug] Factory producing type 'podio::EventStore' has an empty collection name, omitting.
[2022-12-24 12:05:38.658] [JEventProcessorPODIO] [debug] Persisting podio types from includes list
[2022-12-24 12:05:38.658] [JEventProcessorPODIO] [warning] Explicitly included collection 'B0TrackerRecHits' not present in JFactorySet, omitting.

Describe the solution you'd like B0TrackerRecHits to be included in output collection and B0 hits be used in reconstruction

Describe alternatives you've considered N/A

Additional context N/A

@DraTeots Following up from discussion in ACTS meeting. Here's the detailed steps I followed for B0 Reconstruction:

Clone epic

git clone https://github.com/eic/epic
cd epic
git checkout 161-acts-tracking-for-B0

Create a file inside the configurations folder called tracking.yml containing

features:
  fields:
    marco:
  tracking:
    definitions:
    vertex_barrel:
    silicon_barrel:
    mpgd_barrel:
    mpgd_dirc:
    silicon_disks:
    support_service_assembly:
    tof_barrel:
    tof_endcap:
  far_forward:
    far_forward:

Create a steering file called proton.py containing


from DDSim.DD4hepSimulation import DD4hepSimulation
from g4units import mm, GeV, MeV, mrad
SIM = DD4hepSimulation()

SIM.enableGun = True
SIM.gun.thetaMin = 6*mrad
SIM.gun.thetaMax = 22*mrad
SIM.gun.momentumMin = 275*GeV
SIM.gun.momentumMax = 275*GeV
SIM.gun.distribution = 'cos(theta)'
SIM.gun.particle = 'proton'
SIM.outputFile = 'proton_275GeV_6mrad_22mrad_costheta.edm4hep.root'

Then build epic and set environment

cmake -DCMAKE_CXX_STANDARD=17 -DCMAKE_INSTALL_PREFIX=install -S . -B build
cmake --build build -j 8
cmake --install build
source install/setup.sh
export DETECTOR_CONFIG=epic_tracking
export BEAMLINE_CONFIG=epic_tracking

Run sim

ddsim --steeringFile proton.py -G -N 100 --compactFile $DETECTOR_PATH/$DETECTOR_CONFIG.xml

Clone and build eicrecon:

git clone https://github.com/eic/EICrecon
cd EICrecon
git checkout 404-acts-tracking-with-B0-trackers
cmake -DCMAKE_CXX_STANDARD=17 -DCMAKE_INSTALL_PREFIX=install -S . -B build
cmake --build build -j 8
cmake --install build

Set environment and run eicrecon

cd install/bin
export JANA_PLUGIN_PATH=../lib/EICrecon/plugins
sed -i 's%f"eicrecon"%f"./eicrecon"%g' run_eicrecon_reco_flags.py
python ./run_eicrecon_reco_flags.py ../../../epic/proton_275GeV_6mrad_22mrad_costheta.edm4hep.root rec_proton_275GeV_6mrad_22mrad_costheta_tracking_only -Pplugins=dump_flags -Pdump_flags:json=tracking_only_flags.json > log1.txt

log1.txt contains all warnings and rec_proton_275GeV_6mrad_22mrad_costheta_tracking_only.tree.edm4eic.root contains reconstructed output. Open reconstructed root file and try drawing momentum reconstructed. It is empty.

events->Draw("ReconstructedChargedParticles[0].momentum.z", "", "HIST")

However, the collection of hits passed to Tracker Source Linker shows B0 hits

events->Draw("CentralTrackingRecHits.position.x:CentralTrackingRecHits.position.z","","*")

eic / EICrecon

ACTS tracking with B0 trackers #404