Implements class TrackParticleFitObject TrackParticleFitObject takes an LCIO track or trackstate (parameters & covariance) as input. it knows about the 4-momentum and "decay plane" of the TrackParticleObject "decay plane" is the plane defined by the IP and the tangent to the track at PCA At present it considers the track only at the PCA: i.e. the momentum/decay plane are considered only at the PCA, not at a general position along the helix this means it's no good for fitting (significantly) displaced vertices in which the tracks have bent significantly between the PCA and vertex positions this should be improved in a future update by including extra parameters (as was done for the original Track-based classes) More...

#include "TrackParticleFitObject.h"
#include <cmath>
#include <cassert>
#include <iostream>
#include <iomanip>

Detailed Description

Implements class TrackParticleFitObject TrackParticleFitObject takes an LCIO track or trackstate (parameters & covariance) as input. it knows about the 4-momentum and "decay plane" of the TrackParticleObject "decay plane" is the plane defined by the IP and the tangent to the track at PCA At present it considers the track only at the PCA: i.e. the momentum/decay plane are considered only at the PCA, not at a general position along the helix this means it's no good for fitting (significantly) displaced vertices in which the tracks have bent significantly between the PCA and vertex positions this should be improved in a future update by including extra parameters (as was done for the original Track-based classes)