The Class for ARICH reconstruction parameters. More...

#include <ARICHReconstructionPar.h>

Inheritance diagram for ARICHReconstructionPar:

Collaboration diagram for ARICHReconstructionPar:

[legend]

Public Member Functions
	ARICHReconstructionPar ()
	Default constructor.

void	initializeDefault ()
	initializes "default" values of parameters

void	setBackgroundPDF (TF1 *bkgPDF)
	Set background PDF function for cherenkov angle distribution (vs. More...

void	setThcResolution (TF1 *thcRes)
	Set function for cherenkov angle resolution vs. More...

void	setAerogelFOM (const std::vector< float > &aerogelFOM)
	Set aerogel figure of merit for cherenkov photon yield. More...

void	setFlatBkgPerPad (const float flatBkgPerPad)
	Set flat background per pad. More...

void	setParameters (const std::vector< float > &pars)
	Set additional cherenkov angle PDF parameters. More...

const std::vector< float > &	getParameters () const
	Get vector of additional cherenkov angle PDF parameters. More...

const TF1 *	getBackgroundPDF () const
	Get background PDF function. More...

double	getThcResolution (double momentum) const
	Get Cherenkov angle resolution (without smearing due to pad size!) at given track momentum. More...

double	getAerogelFOM (unsigned iLayer) const
	Get aerogel cherenkov photon yield for tile of selected layer. More...

float	getFlatBkgPerPad () const
	Get flat background per pad. More...

double	getBackgroundPerPad (double th_cer, const std::vector< double > &pars) const
	Get expected number of background hits for pad at given theta. More...

double	getExpectedBackgroundHits (const std::vector< double > &pars, double minThc=0.1, double maxThc=0.5) const
	Get number of expected background hits in ring (0.1<theta<0.5rad by default) More...

double	getNPadsInRing (double maxThc, double minThc=0.0, double trackTh=0.45) const
	Get average number of pads in ring. More...

void	print () const
	Print parameters values.

Private Member Functions
	ClassDef (ARICHReconstructionPar, 1)
	ClassDef, must be the last term before the closing {}.

Private Attributes
TF1 *	m_bkgPDF = NULL
	background PDF function (function of theta)

TF1 *	m_thcResolution = NULL
	cherenkov angle resolution (function of track momentum)

std::vector< float >	m_pars
	vector of other pdf parameters

std::vector< float >	m_aerogelFOM
	aerogel figure of merit (for photon yield)

float	m_flatBkgPerPad = 0.0
	expected background hits per pad (treated flat over detector surface)

Detailed Description

The Class for ARICH reconstruction parameters.

This class provides ARICH parameters for reconstruction (i.e. likelihood calculation)

Definition at line 24 of file ARICHReconstructionPar.h.

Member Function Documentation

◆ getAerogelFOM()

double getAerogelFOM ( unsigned iLayer ) const

inline

Get aerogel cherenkov photon yield for tile of selected layer.

Parameters

iLayer aerogel layer

Returns: aerogel cherenkov photon yield

Definition at line 112 of file ARICHReconstructionPar.h.

     {
       return m_aerogelFOM.at(iLayer);
     }

◆ getBackgroundPDF()

const TF1* getBackgroundPDF ( ) const

inline

Get background PDF function.

Returns: background PDF function

Definition at line 92 of file ARICHReconstructionPar.h.

◆ getBackgroundPerPad()

double getBackgroundPerPad	(	double	th_cer,
		const std::vector< double > &	pars
	)		const

Get expected number of background hits for pad at given theta.

Parameters

th_cer	pad theta angle
pars	vector of parameters for PDF (beta, track hits HAPD window (1 or 0))

Returns: expected number of backgrond hits on pad

Definition at line 36 of file ARICHReconstructionPar.cc.

 {
  
   int ipar = 0;
   for (auto par : pars) {
     m_bkgPDF->SetParameter(ipar, par);
     ipar++;
   }
   return m_bkgPDF->Eval(th_cer) + m_flatBkgPerPad;
 }

◆ getExpectedBackgroundHits()

double getExpectedBackgroundHits	(	const std::vector< double > &	pars,
		double	minThc = `0.1`,
		double	maxThc = `0.5`
	)		const

Get number of expected background hits in ring (0.1<theta<0.5rad by default)

Parameters

pars	vector of parameters for PDF (beta, track hits HAPD window (1 or 0))
minThc	inner theta angle of ring
maxThc	outter theta angle of ring

Returns: expected number of backgrond hits in ring

Definition at line 47 of file ARICHReconstructionPar.cc.

◆ getFlatBkgPerPad()

float getFlatBkgPerPad ( ) const

inline

Get flat background per pad.

Returns: flat background per pad

Definition at line 121 of file ARICHReconstructionPar.h.

◆ getNPadsInRing()

double getNPadsInRing	(	double	maxThc,
		double	minThc = `0.0`,
		double	trackTh = `0.45`
	)		const

Get average number of pads in ring.

Parameters

maxThc	outter theta angle of ring
minThc	inner theta angle of ring
trackTh	theta angle of track (global coordinates, z axis theta = 0)

Returns: average number of pads in ring

Definition at line 69 of file ARICHReconstructionPar.cc.

◆ getParameters()

const std::vector<float>& getParameters ( ) const

inline

Get vector of additional cherenkov angle PDF parameters.

Returns: vector of parameters

Definition at line 83 of file ARICHReconstructionPar.h.

◆ getThcResolution()

double getThcResolution ( double momentum ) const

inline

Get Cherenkov angle resolution (without smearing due to pad size!) at given track momentum.

Parameters

momentum track momentum

Returns: cherenkov angle resolution

Definition at line 102 of file ARICHReconstructionPar.h.

◆ setAerogelFOM()

void setAerogelFOM ( const std::vector< float > & aerogelFOM )

inline

Set aerogel figure of merit for cherenkov photon yield.

Parameters

aerogelFOM vector of aerogel layers FOMs

Definition at line 56 of file ARICHReconstructionPar.h.

◆ setBackgroundPDF()

void setBackgroundPDF ( TF1 * bkgPDF )

inline

Set background PDF function for cherenkov angle distribution (vs.

theta)

Parameters

bkgPDF background PDF

Definition at line 38 of file ARICHReconstructionPar.h.

◆ setFlatBkgPerPad()

void setFlatBkgPerPad ( const float flatBkgPerPad )

inline

Set flat background per pad.

Parameters

flatBkgPerPad value of flat background per pad

Definition at line 65 of file ARICHReconstructionPar.h.

◆ setParameters()

void setParameters ( const std::vector< float > & pars )

inline

Set additional cherenkov angle PDF parameters.

Parameters

pars	vector of parameters

Definition at line 74 of file ARICHReconstructionPar.h.

◆ setThcResolution()

void setThcResolution ( TF1 * thcRes )

inline

Set function for cherenkov angle resolution vs.

momentum

Parameters

thcRes cherenkov angle resolution vs. momentum function

Definition at line 47 of file ARICHReconstructionPar.h.

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

arich/dbobjects/include/ARICHReconstructionPar.h
arich/dbobjects/src/ARICHReconstructionPar.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Function Documentation

◆ getAerogelFOM()

◆ getBackgroundPDF()

◆ getBackgroundPerPad()

◆ getExpectedBackgroundHits()

◆ getFlatBkgPerPad()

◆ getNPadsInRing()

◆ getParameters()

◆ getThcResolution()

◆ setAerogelFOM()

◆ setBackgroundPDF()

◆ setFlatBkgPerPad()

◆ setParameters()

◆ setThcResolution()