reconstruction Directory Reference

Description

Reconstruction

Event reconstruction of BM@N : track finding and fitting, global tracking, vertexing, particle identification, reconstruction of the forward detectors and filling of the DST. The hit reconstruction of the tracking and time-of-flight detectors is in detectors.

Reconstruction chain

The chain is defined in macro/run/run_reco_bmn.C (see macro/run) and processes simulated or experimental DIGI files:

1. Hits of the beam and tracking detectors: SiBT, MWPC, VSP, Forward Silicon, GEM, CSC (detectors);
2. Hits of TOF-400 and TOF-700 (detectors/tof1);
3. Forward detectors: FHCal, ScWall, hodoscope, NDet, VacWall (fhcal, scwall, hodo, ndet, vacwall);
4. Inner tracking: conversion of the strip clusters to the STS format and track finding by the CA (L1) track finder (cat) or the vector finder (tracking/sts), track fit with the Kalman filter (KF);
5. Beam tracking (tracking);
6. Primary vertex finding (KF, globaltracking);
7. Global tracking: matching with TOF, ScWall and NDet (globaltracking);
8. Matching of the reconstructed objects with MC truth (simulation), dE/dx (identification);
9. Filling of the DST headers and trigger information (dst).

Subdirectories

Directory	Description
cat	Cellular Automaton track finder (CBM L1)
KF	Kalman filter package: track fit, vertex finding, KF particles
tracking	Beam tracking, vector finder and the track finders of the earlier runs
globaltracking	Global tracks, matching with outer detectors, primary vertex
identification	dE/dx and particle identification
centrality	Centrality determination
dst	Filling of the DST event and run headers
fhcal	FHCal reconstruction
hodo	Hodoscope reconstruction
scwall	ScWall reconstruction
ndet	Neutron detector reconstruction
zdc	ZDC reconstruction
vacwall	VacWall MC points in the DST
bmnrecotools	Embedding and reconstruction quality tools
tof2	Old TOF-700 hit producer (not built)

Libraries

Each subdirectory is built into its own library (e.g. Cat, KF, BmnTracking, BmnGlobalTracking, BmnDst); see the README of the subdirectory.

Directory dependency graph for reconstruction:

Directories
	bmnrecotools
	Reconstruction tools
	cat
	CA track finder (CBM L1)
	centrality
	Centrality determination
	dst
	DST filling
	fhcal
	FHCal reconstruction
	globaltracking
	Global tracking and vertexing
	hodo
	Hodoscope reconstruction
	identification
	Particle identification
	KF
	Kalman filter package (KF)
	ndet
	Neutron detector reconstruction
	scwall
	ScWall reconstruction
	tof2
	TOF-700 reconstruction (old)
	tracking
	Tracking
	vacwall
	VacWall reconstruction
	zdc
	ZDC reconstruction