Template Class TrackAtVertex

Class Documentation

template<typename input_track_t>
class Acts::TrackAtVertex

Defines a track at vertex object.

Template Parameters

  • input_track_t: Track object type

Public Functions

TrackAtVertex() = delete

Deleted default constructor.

TrackAtVertex(double chi2perTrack, const BoundTrackParameters &paramsAtVertex, const input_track_t *originalTrack)

Parameterized constructor.

Parameters

  • chi2perTrack: Chi2 of track

  • paramsAtVertex: Fitted perigee parameter

  • originalTrack: Original perigee parameter

TrackAtVertex(const BoundTrackParameters &paramsAtVertex, const input_track_t *originalTrack)

Constructor with default chi2.

Parameters

  • chi2perTrack: Chi2 of track

  • paramsAtVertex: Fitted perigee parameter

  • originalTrack: Original perigee parameter

Public Members

double chi2Track = 0

Chi2 of track.

BoundTrackParameters fittedParams

Fitted perigee.

bool isLinearized = false

Is already linearized.

LinearizedTrack linearizedState

The linearized state of the track at vertex.

double ndf = 0

Number degrees of freedom Note: Can be different from integer value since annealing can result in effective non-interger values.

const input_track_t *originalParams

Original input parameters.

double trackWeight = 0

Weight of track in fit.

double vertexCompatibility = 0

Value of the compatibility of the track to the actual vertex, based on the estimation of the 3d distance between the track and the vertex.