#include "TrackAssociatorByChi2Impl.h"
#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
#include "DataFormats/Math/interface/deltaPhi.h"
#include "DataFormats/GeometrySurface/interface/Line.h"
#include "TrackingTools/PatternTools/interface/trackingParametersAtClosestApproachToBeamSpot.h"
#include "getChi2.h"