edm4eic::ClusterData Class Reference

#include <ClusterData.h>

Public Attributes
std::int32_t	type {}
	Flag-word that defines the type of the cluster.
float	energy {}
	Reconstructed energy of the cluster [GeV].
float	energyError {}
	Error on the cluster energy [GeV].
float	time {}
	[ns]
float	timeError {}
	Error on the cluster time.
std::uint32_t	nhits {}
	Number of hits in the cluster.
::edm4hep::Vector3f	position {}
	Global position of the cluster [mm].
::edm4eic::Cov3f	positionError {}
	Covariance matrix of the position (6 Parameters).
float	radius {}
	Cluster radius [mm].
float	dispersion {}
	Cluster dispersion [mm].
std::array< float, 3 >	principalAxesLengthsXYZ {}
	Lengths along the cluster's principal axes [mm], sorted in descending order (equivalent to sqrt of eigenvalues of the position covariance). For an XY planar detector one can expect this to be [sigma_max, sigma_min, 0].
std::array< float, 2 >	principalAxesLengthsThetaPhi {}
	Lengths along the cluster's principal axes [rad], sorted in descending order.
float	intrinsicTheta {}
	Intrinsic cluster propagation direction polar angle [rad].
float	intrinsicPhi {}
	Intrinsic cluster propagation direction azimuthal angle [rad]. For an XY planar detector one can expect this to be the tilt of "sigma_max" axis.
::edm4eic::Cov2f	intrinsicDirectionError {}
	Error on the intrinsic cluster propagation direction.
unsigned int	shapeParameters_begin {}
unsigned int	shapeParameters_end {}
unsigned int	hitContributions_begin {}
unsigned int	hitContributions_end {}
unsigned int	subdetectorEnergies_begin {}
unsigned int	subdetectorEnergies_end {}
unsigned int	clusters_begin {}
unsigned int	clusters_end {}
unsigned int	hits_begin {}
unsigned int	hits_end {}
unsigned int	particleIDs_begin {}
unsigned int	particleIDs_end {}

Detailed Description

EIC hit cluster, reworked to more closely resemble EDM4hep

Author

: W. Armstrong, S. Joosten, C.Peng

Member Data Documentation

clusters_begin

unsigned int edm4eic::ClusterData::clusters_begin {}

clusters_end

unsigned int edm4eic::ClusterData::clusters_end {}

dispersion

float edm4eic::ClusterData::dispersion {}

Cluster dispersion [mm].

energy

float edm4eic::ClusterData::energy {}

Reconstructed energy of the cluster [GeV].

energyError

float edm4eic::ClusterData::energyError {}

Error on the cluster energy [GeV].

hitContributions_begin

unsigned int edm4eic::ClusterData::hitContributions_begin {}

hitContributions_end

unsigned int edm4eic::ClusterData::hitContributions_end {}

hits_begin

unsigned int edm4eic::ClusterData::hits_begin {}

hits_end

unsigned int edm4eic::ClusterData::hits_end {}

intrinsicDirectionError

::edm4eic::Cov2f edm4eic::ClusterData::intrinsicDirectionError {}

Error on the intrinsic cluster propagation direction.

intrinsicPhi

float edm4eic::ClusterData::intrinsicPhi {}

Intrinsic cluster propagation direction azimuthal angle [rad]. For an XY planar detector one can expect this to be the tilt of "sigma_max" axis.

intrinsicTheta

float edm4eic::ClusterData::intrinsicTheta {}

Intrinsic cluster propagation direction polar angle [rad].

nhits

std::uint32_t edm4eic::ClusterData::nhits {}

Number of hits in the cluster.

particleIDs_begin

unsigned int edm4eic::ClusterData::particleIDs_begin {}

particleIDs_end

unsigned int edm4eic::ClusterData::particleIDs_end {}

position

::edm4hep::Vector3f edm4eic::ClusterData::position {}

Global position of the cluster [mm].

positionError

::edm4eic::Cov3f edm4eic::ClusterData::positionError {}

Covariance matrix of the position (6 Parameters).

principalAxesLengthsThetaPhi

std::array<float, 2> edm4eic::ClusterData::principalAxesLengthsThetaPhi {}

Lengths along the cluster's principal axes [rad], sorted in descending order.

principalAxesLengthsXYZ

std::array<float, 3> edm4eic::ClusterData::principalAxesLengthsXYZ {}

Lengths along the cluster's principal axes [mm], sorted in descending order (equivalent to sqrt of eigenvalues of the position covariance). For an XY planar detector one can expect this to be [sigma_max, sigma_min, 0].

radius

float edm4eic::ClusterData::radius {}

Cluster radius [mm].

shapeParameters_begin

unsigned int edm4eic::ClusterData::shapeParameters_begin {}

shapeParameters_end

unsigned int edm4eic::ClusterData::shapeParameters_end {}

subdetectorEnergies_begin

unsigned int edm4eic::ClusterData::subdetectorEnergies_begin {}

subdetectorEnergies_end

unsigned int edm4eic::ClusterData::subdetectorEnergies_end {}

time

float edm4eic::ClusterData::time {}

[ns]

timeError

float edm4eic::ClusterData::timeError {}

Error on the cluster time.

type

std::int32_t edm4eic::ClusterData::type {}

Flag-word that defines the type of the cluster.

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The documentation for this class was generated from the following file:

• build/edm4eic/ClusterData.h