CbmStsAlgoAnaCluster Class Reference

Determination of cluster parameters. More...

#include <CbmStsAlgoAnaCluster.h>

Inheritance diagram for CbmStsAlgoAnaCluster:

Collaboration diagram for CbmStsAlgoAnaCluster:

Public Member Functions
	CbmStsAlgoAnaCluster ()
	Constructor.
	CbmStsAlgoAnaCluster (const CbmStsAlgoAnaCluster &)=delete
	Copy constructor (disabled)
CbmStsAlgoAnaCluster &	operator= (const CbmStsAlgoAnaCluster &)=delete
	Assignment operator (disabled)
virtual	~CbmStsAlgoAnaCluster ()
	Destructor.
void	Exec (CbmStsCluster &cluster, const CbmStsParModule *module)
	Algorithm execution.

Private Member Functions
void	AnaSize1 (CbmStsCluster &cluster, const CbmStsParModule *modPar)
	Analyse single-digi cluster.
void	AnaSize2 (CbmStsCluster &cluster, const CbmStsParModule *modPar)
	Analyse two-digi cluster.
void	AnaSizeN (CbmStsCluster &cluster, const CbmStsParModule *modPar)
	Analyse cluster with more than two digis.
Double_t	WeightedMean (CbmStsCluster &cluster, const CbmStsParModule *modPar)
	Weighted mean cluster position.
	ClassDef (CbmStsAlgoAnaCluster, 1)
	Instance of physics tool.

Private Attributes
CbmDigiManager *	fDigiMan = nullptr
CbmStsPhysics *	fPhysics = nullptr
	Interface to digi data.

Detailed Description

Determination of cluster parameters.

Author

V.Friese v.fri.nosp@m.ese@.nosp@m.gsi.d.nosp@m.e

Since

23.03.2020

This class implements the determination of STS cluster parameters (time, position, charge) and their errors from the digis contained in the cluster.

The mathematics is described in: H. Malygina, Hit Reconstruction for the Silicon Tracking System of the CBM experiment, PhD thesis, Goethe-Universität Frankfurt, 2018

Definition at line 36 of file CbmStsAlgoAnaCluster.h.

Constructor & Destructor Documentation

CbmStsAlgoAnaCluster() [1/2]

CbmStsAlgoAnaCluster::CbmStsAlgoAnaCluster

(

)

Constructor.

CbmStsAlgoAnaCluster() [2/2]

CbmStsAlgoAnaCluster::CbmStsAlgoAnaCluster ( const CbmStsAlgoAnaCluster & )

delete

Copy constructor (disabled)

~CbmStsAlgoAnaCluster()

virtual CbmStsAlgoAnaCluster::~CbmStsAlgoAnaCluster ( )

inlinevirtual

Destructor.

Definition at line 52 of file CbmStsAlgoAnaCluster.h.

Member Function Documentation

AnaSize1()

void CbmStsAlgoAnaCluster::AnaSize1 ( CbmStsCluster & cluster, const CbmStsParModule * modPar )

private

Analyse single-digi cluster.

Parameters

cluster	Pointer to cluster object
module	Pointer to module object

Definition at line 35 of file CbmStsAlgoAnaCluster.cxx.

References fDigiMan, CbmDigiManager::Get(), CbmStsDigi::GetChannel(), CbmCluster::GetDigi(), CbmStsCluster::SetProperties(), CbmStsCluster::SetSize(), sqrt(), and x.

Referenced by Exec().

AnaSize2()

void CbmStsAlgoAnaCluster::AnaSize2 ( CbmStsCluster & cluster, const CbmStsParModule * modPar )

private

Analyse two-digi cluster.

Parameters

cluster	Pointer to cluster object
module	Pointer to module object

Definition at line 60 of file CbmStsAlgoAnaCluster.cxx.

References fDigiMan, fPhysics, CbmDigiManager::Get(), CbmStsDigi::GetChannel(), CbmCluster::GetDigi(), CbmStsParModule::GetNofChannels(), CbmStsParModule::GetParAsic(), CbmStsPhysics::LandauWidth(), CbmStsCluster::SetProperties(), CbmStsCluster::SetSize(), and x.

Referenced by Exec().

AnaSizeN()

void CbmStsAlgoAnaCluster::AnaSizeN ( CbmStsCluster & cluster, const CbmStsParModule * modPar )

private

Analyse cluster with more than two digis.

Parameters

cluster	Pointer to cluster object
module	Pointer to module object

Definition at line 135 of file CbmStsAlgoAnaCluster.cxx.

References fDigiMan, fPhysics, CbmDigiManager::Get(), CbmStsDigi::GetChannel(), CbmCluster::GetDigi(), CbmStsParModule::GetNofChannels(), CbmCluster::GetNofDigis(), CbmStsParAsic::GetNoise(), CbmStsParModule::GetParAsic(), CbmStsPhysics::LandauWidth(), CbmStsCluster::SetProperties(), CbmStsCluster::SetSize(), WeightedMean(), and x.

Referenced by Exec().

ClassDef()

CbmStsAlgoAnaCluster::ClassDef ( CbmStsAlgoAnaCluster , 1  )

private

Instance of physics tool.

Exec()

void CbmStsAlgoAnaCluster::Exec	(	CbmStsCluster &	cluster,
		const CbmStsParModule *	module )

Algorithm execution.

Parameters

cluster	Pointer to cluster object
module	Pointer to CbmStsRecoModule to be operated on

Definition at line 229 of file CbmStsAlgoAnaCluster.cxx.

References AnaSize1(), AnaSize2(), AnaSizeN(), and CbmCluster::GetNofDigis().

Referenced by CbmStsRecoModule::FindClusters().

operator=()

CbmStsAlgoAnaCluster & CbmStsAlgoAnaCluster::operator= ( const CbmStsAlgoAnaCluster & )

delete

Assignment operator (disabled)

WeightedMean()

Double_t CbmStsAlgoAnaCluster::WeightedMean ( CbmStsCluster & cluster, const CbmStsParModule * modPar )

private

Weighted mean cluster position.

Parameters

cluster	Pointer to cluster object
module	Pointer to module object

Returns

cluster position

This procedure is used when the result obtained by AnaSizeN are outside the range of the involved channels. This can happen e.g. for incomplete clusters, e.g. those cut at the edge of sensor.

Definition at line 248 of file CbmStsAlgoAnaCluster.cxx.

References CbmStsParAsic::AdcToCharge(), fDigiMan, CbmDigiManager::Get(), CbmStsDigi::GetChannel(), CbmCluster::GetDigi(), CbmCluster::GetNofDigis(), and CbmStsParModule::GetParAsic().

Referenced by AnaSizeN().

Member Data Documentation

fDigiMan

CbmDigiManager* CbmStsAlgoAnaCluster::fDigiMan = nullptr

private

Definition at line 98 of file CbmStsAlgoAnaCluster.h.

Referenced by AnaSize1(), AnaSize2(), AnaSizeN(), and WeightedMean().

fPhysics

CbmStsPhysics* CbmStsAlgoAnaCluster::fPhysics = nullptr

private

Interface to digi data.

Definition at line 99 of file CbmStsAlgoAnaCluster.h.

Referenced by AnaSize2(), and AnaSizeN().

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

• CbmStsAlgoAnaCluster.h
• CbmStsAlgoAnaCluster.cxx