#include <PVertexerParams.h>

Inherits o2::conf::ConfigurableParamHelper< PVertexerParams >.

Public Member Functions
	O2ParamDef (PVertexerParams, "pvertexer")

Public Member Functions inherited from o2::conf::ConfigurableParamHelper< PVertexerParams >
std::string	getName () const final

EParamProvenance	getMemberProvenance (const std::string &key) const final

void	printKeyValues (bool showProv=true, bool useLogger=false) const final

size_t	getHash () const final

void	output (std::ostream &out) const final

std::vector< ParamDataMember > *	getDataMembers () const

void	putKeyValues (boost::property_tree::ptree *tree) final

void	initFrom (TFile *file) final

void	syncCCDBandRegistry (void *externalobj) final

void	serializeTo (TFile *file) const final

	ConfigurableParam ()

Public Attributes
float	sysErrY2 = 0.
	systematic error on track Y error

float	sysErrZ2 = 0.
	systematic error on track Z error

float	dbscanMaxDist2 = 9.
	distance^2 cut (eps^2).

float	dbscanDeltaT = -0.9
	abs. time difference cut, should be ~ 0.5 ITS ROF duration if ITS SA tracks used, if < 0 then the value calculated as mITSROFrameLengthMUS*(-dbscanDeltaT)

float	dbscanAdaptCoef = 0.1
	adapt dbscan minPts for each cluster as minPts=max(minPts, currentSize*dbscanAdaptCoef).

float	dbscanMaxSigZCorPoint = 0.1
	max sigZ of the track which can be core points in the DBScan

int	maxVerticesPerCluster = 10
	max vertices per time-z cluster to look for

int	maxTrialsPerCluster = 100
	max unsucessful trials for vertex search per vertex

long	maxTimeMSPerCluster = 10000
	max allowed time per TZCluster processing, ms

float	meanVertexExtraErrSelection = 0.02
	extra error to meanvertex sigma used when selecting tracks

float	dcaTolerance = 1.3
	consider tracks within this abs DCA to mean vertex

float	pullIniCut = 9
	cut on pull (n^2 sigma) on dca to mean vertex

float	maxTimeErrorMUS = 10.0
	max time error in ms of the track to account

float	trackMaxX = 5.
	lowest updtate point must be below this X

int	minIBHits = 1.
	min number of IB hits (set to 1 for bwd compatibility, but better use 2)

float	histoBinZSize = 0.05
	size of the seedTZ histo bin Z

float	histoBinTSize = 0.05
	size of the seedTZ histo bin T

float	addTimeSigma2 = 0.1 * 0.1
	increment time error^2 by this amount when calculating histo weight

float	addZSigma2 = 0.005 * 0.005
	increment z error^2 by this amount when calculating histo weight

float	meanVertexExtraErrConstraint = 0.
	extra error to meanvertex sigma used when applying constrant

bool	useMeanVertexConstraint = true
	use MeanVertex as extra measured point

float	tukey = kDefTukey
	Tukey parameter.

float	iniScale2 = 5.
	initial scale to assign

float	minScale2 = 1.
	min scaling factor^2

float	acceptableScale2 = 4.
	if below this factor, try to refit with minScale2

float	maxScale2 = 50
	max slaling factor^2

float	upscaleFactor = 9.
	factor for upscaling if not candidate is found

float	slowConvergenceFactor = 0.5
	consider convergence as slow if ratio new/old scale2 exceeds it

bool	applyDebrisReduction = true
	apply algorithm reducing split vertices

bool	applyReattachment = true
	refit vertices reattaching tracks to closest found vertex

float	timeMarginReattach = 1.
	safety marging for track time vs vertex time difference during reattachment

float	maxTDiffDebris = 7.0
	when reducing debris, don't consider vertices separated by time > this value in \mus if >0, if <0: mult factor to ITS ROF

float	maxZDiffDebris = 1.0
	don't consider vertices separated by Z > this value in cm

float	maxMultRatDebris = 0.05
	don't consider vertices with multiplicity ratio above this

float	maxChi2TZDebris = 2000.
	don't consider vertices with mutual chi2 exceeding this (for pp should be ~10)

float	addTimeSigma2Debris = 0.05 * 0.05
	increment time error^2 by this amount when calculating vertex-to-vertex chi2

float	addZSigma2Debris = 0.005 * 0.005
	increment z error^2 by this amount when calculating vertex-to-vertex chi2

float	maxTDiffDebrisExtra = 0
	when reducing debris, don't consider vertices separated by time > this value in \mus if >0, if <0: mult factor to ITS ROF

float	maxZDiffDebrisExtra = 0.05
	don't consider vertices separated by Z > this value in cm

float	maxMultRatDebrisExtra = 1.0
	don't consider vertices with multiplicity ratio above this

float	maxChi2TZDebrisExtra = 100.
	don't consider vertices with mutual chi2 exceeding this (for pp should be ~10)

float	addTimeSigma2DebrisExtra = 225.
	increment time error^2 by this amount when calculating vertex-to-vertex chi2

float	addZSigma2DebrisExtra = 1.e-3
	increment z error^2 by this amount when calculating vertex-to-vertex chi2

float	maxITSOnlyFraction = 1.0
	max ITS-only tracks fraction to accept, recommended value for PbPb = 0.85

float	minITSOnlyFraction = 0.0
	min ITS-only tracks fraction to accept

float	maxTMAD = -1.
	max accepted tMAD, not tMAD cleanup if negative

float	minTMAD = -1.
	min accepted tMAD

float	maxZMAD = -1.
	max accepted zMAD, not zMAD cleanup if negative

float	minZMAD = -1.
	min accepted zMAD

int	minNContributorsForIRcutIni = -1
	min multiplicity to reject before cleanup if no matching interaction found (if >= 0)

int	minNContributorsForIRcut = 10
	do not apply IR cut to vertices below IR tagging efficiency threshold

float	maxTError = 0.2
	use min of vertex time error or this for nsigma evaluation

float	minTError = 0.003
	don't use error smaller than that (~BC/2/minNContributorsForFT0cut)

float	nSigmaTimeCut = 4.
	eliminate vertex if there is no FT0 or BC signal within this cut

float	timeBiasMS = 0
	relative bias in ms to add to TPCITS-based time stamp

bool	doBCValidation = true
	apply validation by interacting BC compatible with the vertex time span

float	maxChi2Mean = 10.
	max mean chi2 of vertex to accept

int	minTracksPerVtx = 2
	min N tracks per vertex

int	maxIterations = 20
	max iterations per vertex fit

int	maxNScaleIncreased = 2
	max number of scaling-non-decreasing iterations

int	maxNScaleSlowConvergence = 3
	max number of weak scaling decrease iterations

bool	useTimeInChi2 = true
	use track-vertex time difference in chi2 calculation

float	nSigmaTimeTrack = 4.
	define track time bracket as +- this number of sigmas of its time resolution

float	timeMarginTrackTime = 0.5
	additive marginal error in \mus to track time bracket

float	timeMarginVertexTime = 0.0
	additive marginal error to \mus vertex time bracket

Static Public Attributes
static constexpr float	kDefTukey = 4.685f
	def.value for tukey constant

Additional Inherited Members
Public Types inherited from o2::conf::ConfigurableParam
enum	EParamProvenance { kCODE , kCCDB , kRT }

enum class	EParamUpdateStatus { Changed , Unchanged , Failed }

Static Public Member Functions inherited from o2::conf::ConfigurableParamHelper< PVertexerParams >
static const PVertexerParams &	Instance ()

Static Public Member Functions inherited from o2::conf::ConfigurableParam
static std::string	toString (EParamProvenance p)

static EParamProvenance	getProvenance (const std::string &key)

static void	printAllRegisteredParamNames ()

static void	printAllKeyValuePairs (bool useLogger=false)

static const std::string &	getOutputDir ()

static void	setOutputDir (const std::string &d)

static bool	configFileExists (std::string const &filepath)

static void	writeJSON (std::string const &filename, std::string const &keyOnly="")

static void	writeINI (std::string const &filename, std::string const &keyOnly="")

template<typename T >
static T	getValueAs (std::string key)

template<typename T >
static void	setValue (std::string const &mainkey, std::string const &subkey, T x)

static void	setProvenance (std::string const &mainkey, std::string const &subkey, EParamProvenance p)

static void	setValue (std::string const &key, std::string const &valuestring)

static void	setEnumValue (const std::string &, const std::string &)

static void	setArrayValue (const std::string &, const std::string &)

static void	setValues (std::vector< std::pair< std::string, std::string > > const &keyValues)

static void	initialize ()

static void	toCCDB (std::string filename)

static void	fromCCDB (std::string filename)

static void	updateFromString (std::string const &)

static void	updateFromFile (std::string const &, std::string const &paramsList="", bool unchangedOnly=false)

Protected Member Functions inherited from o2::conf::ConfigurableParam
	ConfigurableParam ()

virtual	~ConfigurableParam ()=default

void	setRegisterMode (bool b)

bool	isInitialized () const

Static Protected Member Functions inherited from o2::conf::ConfigurableParam
static void	initPropertyTree ()

static EParamUpdateStatus	updateThroughStorageMap (std::string, std::string, std::type_info const &, void *)

static EParamUpdateStatus	updateThroughStorageMapWithConversion (std::string const &, std::string const &)

Static Protected Attributes inherited from o2::conf::ConfigurableParam
static std::map< std::string, std::pair< std::type_info const &, void * > > *	sKeyToStorageMap = nullptr

static std::map< std::string, ConfigurableParam::EParamProvenance > *	sValueProvenanceMap = nullptr

static EnumRegistry *	sEnumRegistry = nullptr

static std::string	sOutputDir = ""

Detailed Description

Definition at line 26 of file PVertexerParams.h.

Member Function Documentation

◆ O2ParamDef()

o2::vertexing::PVertexerParams::O2ParamDef	(	PVertexerParams	,
		"pvertexer"
	)

Member Data Documentation

◆ acceptableScale2

float o2::vertexing::PVertexerParams::acceptableScale2 = 4.

if below this factor, try to refit with minScale2

Definition at line 62 of file PVertexerParams.h.

◆ addTimeSigma2

float o2::vertexing::PVertexerParams::addTimeSigma2 = 0.1 * 0.1

increment time error^2 by this amount when calculating histo weight

Definition at line 53 of file PVertexerParams.h.

◆ addTimeSigma2Debris

float o2::vertexing::PVertexerParams::addTimeSigma2Debris = 0.05 * 0.05

increment time error^2 by this amount when calculating vertex-to-vertex chi2

Definition at line 77 of file PVertexerParams.h.

◆ addTimeSigma2DebrisExtra

float o2::vertexing::PVertexerParams::addTimeSigma2DebrisExtra = 225.

increment time error^2 by this amount when calculating vertex-to-vertex chi2

Definition at line 85 of file PVertexerParams.h.

◆ addZSigma2

float o2::vertexing::PVertexerParams::addZSigma2 = 0.005 * 0.005

increment z error^2 by this amount when calculating histo weight

Definition at line 54 of file PVertexerParams.h.

◆ addZSigma2Debris

float o2::vertexing::PVertexerParams::addZSigma2Debris = 0.005 * 0.005

increment z error^2 by this amount when calculating vertex-to-vertex chi2

Definition at line 78 of file PVertexerParams.h.

◆ addZSigma2DebrisExtra

float o2::vertexing::PVertexerParams::addZSigma2DebrisExtra = 1.e-3

increment z error^2 by this amount when calculating vertex-to-vertex chi2

Definition at line 86 of file PVertexerParams.h.

◆ applyDebrisReduction

bool o2::vertexing::PVertexerParams::applyDebrisReduction = true

apply algorithm reducing split vertices

Definition at line 68 of file PVertexerParams.h.

◆ applyReattachment

bool o2::vertexing::PVertexerParams::applyReattachment = true

refit vertices reattaching tracks to closest found vertex

Definition at line 69 of file PVertexerParams.h.

◆ dbscanAdaptCoef

float o2::vertexing::PVertexerParams::dbscanAdaptCoef = 0.1

adapt dbscan minPts for each cluster as minPts=max(minPts, currentSize*dbscanAdaptCoef).

Definition at line 35 of file PVertexerParams.h.

◆ dbscanDeltaT

float o2::vertexing::PVertexerParams::dbscanDeltaT = -0.9

abs. time difference cut, should be ~ 0.5 ITS ROF duration if ITS SA tracks used, if < 0 then the value calculated as mITSROFrameLengthMUS*(-dbscanDeltaT)

Definition at line 34 of file PVertexerParams.h.

◆ dbscanMaxDist2

float o2::vertexing::PVertexerParams::dbscanMaxDist2 = 9.

distance^2 cut (eps^2).

Definition at line 33 of file PVertexerParams.h.

◆ dbscanMaxSigZCorPoint

float o2::vertexing::PVertexerParams::dbscanMaxSigZCorPoint = 0.1

max sigZ of the track which can be core points in the DBScan

Definition at line 36 of file PVertexerParams.h.

◆ dcaTolerance

float o2::vertexing::PVertexerParams::dcaTolerance = 1.3

consider tracks within this abs DCA to mean vertex

Definition at line 44 of file PVertexerParams.h.

◆ doBCValidation

bool o2::vertexing::PVertexerParams::doBCValidation = true

apply validation by interacting BC compatible with the vertex time span

Definition at line 105 of file PVertexerParams.h.

◆ histoBinTSize

float o2::vertexing::PVertexerParams::histoBinTSize = 0.05

size of the seedTZ histo bin T

Definition at line 52 of file PVertexerParams.h.

◆ histoBinZSize

float o2::vertexing::PVertexerParams::histoBinZSize = 0.05

size of the seedTZ histo bin Z

Definition at line 51 of file PVertexerParams.h.

◆ iniScale2

float o2::vertexing::PVertexerParams::iniScale2 = 5.

initial scale to assign

Definition at line 60 of file PVertexerParams.h.

◆ kDefTukey

constexpr float o2::vertexing::PVertexerParams::kDefTukey = 4.685f

staticconstexpr

def.value for tukey constant

Definition at line 27 of file PVertexerParams.h.

◆ maxChi2Mean

float o2::vertexing::PVertexerParams::maxChi2Mean = 10.

max mean chi2 of vertex to accept

Definition at line 108 of file PVertexerParams.h.

◆ maxChi2TZDebris

float o2::vertexing::PVertexerParams::maxChi2TZDebris = 2000.

don't consider vertices with mutual chi2 exceeding this (for pp should be ~10)

Definition at line 76 of file PVertexerParams.h.

◆ maxChi2TZDebrisExtra

float o2::vertexing::PVertexerParams::maxChi2TZDebrisExtra = 100.

don't consider vertices with mutual chi2 exceeding this (for pp should be ~10)

Definition at line 84 of file PVertexerParams.h.

◆ maxIterations

int o2::vertexing::PVertexerParams::maxIterations = 20

max iterations per vertex fit

Definition at line 110 of file PVertexerParams.h.

◆ maxITSOnlyFraction

float o2::vertexing::PVertexerParams::maxITSOnlyFraction = 1.0

max ITS-only tracks fraction to accept, recommended value for PbPb = 0.85

Definition at line 88 of file PVertexerParams.h.

◆ maxMultRatDebris

float o2::vertexing::PVertexerParams::maxMultRatDebris = 0.05

don't consider vertices with multiplicity ratio above this

Definition at line 75 of file PVertexerParams.h.

◆ maxMultRatDebrisExtra

float o2::vertexing::PVertexerParams::maxMultRatDebrisExtra = 1.0

don't consider vertices with multiplicity ratio above this

Definition at line 83 of file PVertexerParams.h.

◆ maxNScaleIncreased

int o2::vertexing::PVertexerParams::maxNScaleIncreased = 2

max number of scaling-non-decreasing iterations

Definition at line 111 of file PVertexerParams.h.

◆ maxNScaleSlowConvergence

int o2::vertexing::PVertexerParams::maxNScaleSlowConvergence = 3

max number of weak scaling decrease iterations

Definition at line 112 of file PVertexerParams.h.

◆ maxScale2

float o2::vertexing::PVertexerParams::maxScale2 = 50

max slaling factor^2

Definition at line 63 of file PVertexerParams.h.

◆ maxTDiffDebris

float o2::vertexing::PVertexerParams::maxTDiffDebris = 7.0

when reducing debris, don't consider vertices separated by time > this value in \mus if >0, if <0: mult factor to ITS ROF

Definition at line 73 of file PVertexerParams.h.

◆ maxTDiffDebrisExtra

float o2::vertexing::PVertexerParams::maxTDiffDebrisExtra = 0

when reducing debris, don't consider vertices separated by time > this value in \mus if >0, if <0: mult factor to ITS ROF

Definition at line 81 of file PVertexerParams.h.

◆ maxTError

float o2::vertexing::PVertexerParams::maxTError = 0.2

use min of vertex time error or this for nsigma evaluation

Definition at line 100 of file PVertexerParams.h.

◆ maxTimeErrorMUS

float o2::vertexing::PVertexerParams::maxTimeErrorMUS = 10.0

max time error in ms of the track to account

Definition at line 46 of file PVertexerParams.h.

◆ maxTimeMSPerCluster

long o2::vertexing::PVertexerParams::maxTimeMSPerCluster = 10000

max allowed time per TZCluster processing, ms

Definition at line 40 of file PVertexerParams.h.

◆ maxTMAD

float o2::vertexing::PVertexerParams::maxTMAD = -1.

max accepted tMAD, not tMAD cleanup if negative

Definition at line 92 of file PVertexerParams.h.

◆ maxTrialsPerCluster

int o2::vertexing::PVertexerParams::maxTrialsPerCluster = 100

max unsucessful trials for vertex search per vertex

Definition at line 39 of file PVertexerParams.h.

◆ maxVerticesPerCluster

int o2::vertexing::PVertexerParams::maxVerticesPerCluster = 10

max vertices per time-z cluster to look for

Definition at line 38 of file PVertexerParams.h.

◆ maxZDiffDebris

float o2::vertexing::PVertexerParams::maxZDiffDebris = 1.0

don't consider vertices separated by Z > this value in cm

Definition at line 74 of file PVertexerParams.h.

◆ maxZDiffDebrisExtra

float o2::vertexing::PVertexerParams::maxZDiffDebrisExtra = 0.05

don't consider vertices separated by Z > this value in cm

Definition at line 82 of file PVertexerParams.h.

◆ maxZMAD

float o2::vertexing::PVertexerParams::maxZMAD = -1.

max accepted zMAD, not zMAD cleanup if negative

Definition at line 94 of file PVertexerParams.h.

◆ meanVertexExtraErrConstraint

float o2::vertexing::PVertexerParams::meanVertexExtraErrConstraint = 0.

extra error to meanvertex sigma used when applying constrant

Definition at line 57 of file PVertexerParams.h.

◆ meanVertexExtraErrSelection

float o2::vertexing::PVertexerParams::meanVertexExtraErrSelection = 0.02

extra error to meanvertex sigma used when selecting tracks

Definition at line 43 of file PVertexerParams.h.

◆ minIBHits

int o2::vertexing::PVertexerParams::minIBHits = 1.

min number of IB hits (set to 1 for bwd compatibility, but better use 2)

Definition at line 48 of file PVertexerParams.h.

◆ minITSOnlyFraction

float o2::vertexing::PVertexerParams::minITSOnlyFraction = 0.0

min ITS-only tracks fraction to accept

Definition at line 89 of file PVertexerParams.h.

◆ minNContributorsForIRcut

int o2::vertexing::PVertexerParams::minNContributorsForIRcut = 10

do not apply IR cut to vertices below IR tagging efficiency threshold

Definition at line 99 of file PVertexerParams.h.

◆ minNContributorsForIRcutIni

int o2::vertexing::PVertexerParams::minNContributorsForIRcutIni = -1

min multiplicity to reject before cleanup if no matching interaction found (if >= 0)

Definition at line 98 of file PVertexerParams.h.

◆ minScale2

float o2::vertexing::PVertexerParams::minScale2 = 1.

min scaling factor^2

Definition at line 61 of file PVertexerParams.h.

◆ minTError

float o2::vertexing::PVertexerParams::minTError = 0.003

don't use error smaller than that (~BC/2/minNContributorsForFT0cut)

Definition at line 101 of file PVertexerParams.h.

◆ minTMAD

float o2::vertexing::PVertexerParams::minTMAD = -1.

min accepted tMAD

Definition at line 93 of file PVertexerParams.h.

◆ minTracksPerVtx

int o2::vertexing::PVertexerParams::minTracksPerVtx = 2

min N tracks per vertex

Definition at line 109 of file PVertexerParams.h.

◆ minZMAD

float o2::vertexing::PVertexerParams::minZMAD = -1.

min accepted zMAD

Definition at line 95 of file PVertexerParams.h.

◆ nSigmaTimeCut

float o2::vertexing::PVertexerParams::nSigmaTimeCut = 4.

eliminate vertex if there is no FT0 or BC signal within this cut

Definition at line 102 of file PVertexerParams.h.

◆ nSigmaTimeTrack

float o2::vertexing::PVertexerParams::nSigmaTimeTrack = 4.

define track time bracket as +- this number of sigmas of its time resolution

Definition at line 116 of file PVertexerParams.h.

◆ pullIniCut

float o2::vertexing::PVertexerParams::pullIniCut = 9

cut on pull (n^2 sigma) on dca to mean vertex

Definition at line 45 of file PVertexerParams.h.

◆ slowConvergenceFactor

float o2::vertexing::PVertexerParams::slowConvergenceFactor = 0.5

consider convergence as slow if ratio new/old scale2 exceeds it

Definition at line 65 of file PVertexerParams.h.

◆ sysErrY2

float o2::vertexing::PVertexerParams::sysErrY2 = 0.

systematic error on track Y error

Definition at line 29 of file PVertexerParams.h.

◆ sysErrZ2

float o2::vertexing::PVertexerParams::sysErrZ2 = 0.

systematic error on track Z error

Definition at line 30 of file PVertexerParams.h.

◆ timeBiasMS

float o2::vertexing::PVertexerParams::timeBiasMS = 0

relative bias in ms to add to TPCITS-based time stamp

Definition at line 103 of file PVertexerParams.h.

◆ timeMarginReattach

float o2::vertexing::PVertexerParams::timeMarginReattach = 1.

safety marging for track time vs vertex time difference during reattachment

Definition at line 71 of file PVertexerParams.h.

◆ timeMarginTrackTime

float o2::vertexing::PVertexerParams::timeMarginTrackTime = 0.5

additive marginal error in \mus to track time bracket

Definition at line 117 of file PVertexerParams.h.

◆ timeMarginVertexTime

float o2::vertexing::PVertexerParams::timeMarginVertexTime = 0.0

additive marginal error to \mus vertex time bracket

Definition at line 118 of file PVertexerParams.h.

◆ trackMaxX

float o2::vertexing::PVertexerParams::trackMaxX = 5.

lowest updtate point must be below this X

Definition at line 47 of file PVertexerParams.h.

◆ tukey

float o2::vertexing::PVertexerParams::tukey = kDefTukey

Tukey parameter.

Definition at line 59 of file PVertexerParams.h.

◆ upscaleFactor

float o2::vertexing::PVertexerParams::upscaleFactor = 9.

factor for upscaling if not candidate is found

Definition at line 64 of file PVertexerParams.h.

◆ useMeanVertexConstraint

bool o2::vertexing::PVertexerParams::useMeanVertexConstraint = true

use MeanVertex as extra measured point

Definition at line 58 of file PVertexerParams.h.

◆ useTimeInChi2

bool o2::vertexing::PVertexerParams::useTimeInChi2 = true

use track-vertex time difference in chi2 calculation

Definition at line 113 of file PVertexerParams.h.

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

/home/runner/work/AliceO2/AliceO2/Detectors/Vertexing/include/DetectorsVertexing/PVertexerParams.h

Public Member Functions

Public Attributes

Static Public Attributes

Additional Inherited Members