Poisson Class Reference

Make a poisson reconstruction. More...

Inheritance diagram for Poisson:

Public Member Functions
	Poisson (Double_t threshold=.3, Int_t nEta=120, Float_t minEta=-6, Float_t maxEta=6, Int_t nPhi=4, Float_t minPhi=0, Float_t maxPhi=2 *TMath::Pi())
virtual Bool_t	Init ()
virtual Bool_t	Begin (Int_t event)
virtual Bool_t	ProcessESD (AliESDFMD *esd)
virtual Bool_t	End ()
virtual Bool_t	Finish ()
Public Member Functions inherited from AliFMDInput
	AliFMDInput ()
	AliFMDInput (const char *gAliceFile)
virtual	~AliFMDInput ()
virtual void	AddLoad (ETrees tree)
virtual void	RemoveLoad (ETrees tree)
virtual Int_t	NEvents () const
virtual Bool_t	IsLoaded (ETrees tree) const
virtual void	SetLoads (UInt_t mask)
virtual void	SetLoads (const char *mask)
virtual const char *	LoadedString (Bool_t dataOnly=false) const
virtual Bool_t	Event ()
virtual Bool_t	Run (UInt_t maxEvents=0)
virtual Bool_t	ProcessHits ()
virtual Bool_t	ProcessTrackRefs ()
virtual Bool_t	ProcessTracks ()
virtual Bool_t	ProcessStack ()
virtual Bool_t	ProcessDigits ()
virtual Bool_t	ProcessSDigits ()
virtual Bool_t	ProcessRawDigits ()
virtual Bool_t	ProcessRawCalibDigits ()
virtual Bool_t	ProcessRecPoints ()
virtual Bool_t	ProcessESDs ()
virtual Bool_t	ProcessUsers ()
virtual Bool_t	ProcessHit (AliFMDHit *h, TParticle *p)
virtual Bool_t	ProcessTrackRef (AliTrackReference *trackRef, TParticle *track)
virtual Bool_t	ProcessTrack (Int_t i, TParticle *p, AliFMDHit *h)
virtual Bool_t	ProcessParticle (Int_t i, TParticle *p)
virtual Bool_t	ProcessDigit (AliFMDDigit *digit)
virtual Bool_t	ProcessSDigit (AliFMDSDigit *sdigit)
virtual Bool_t	ProcessRawDigit (AliFMDDigit *digit)
virtual Bool_t	ProcessRawCalibDigit (AliFMDDigit *digit)
virtual Bool_t	ProcessRecPoint (AliFMDRecPoint *point)
virtual Bool_t	ProcessESD (UShort_t d, Char_t r, UShort_t s, UShort_t t, Float_t eta, Float_t mult)
virtual Bool_t	ProcessUser (UShort_t d, Char_t r, UShort_t s, UShort_t t, Float_t v)
void	SetRawFile (const char *file)
void	SetInputDir (const char *dir)

Protected Attributes
TH2D *	fEmpty
TH2D *	fTotal
TH2D *	fMult
TFile *	fFile
Int_t	fEv
Double_t	fThreshold
Protected Attributes inherited from AliFMDInput
TString	fGAliceFile
AliRunLoader *	fLoader
AliRun *	fRun
AliStack *	fStack
AliLoader *	fFMDLoader
AliRawReader *	fReader
AliFMDRawReader *	fFMDReader
AliFMD *	fFMD
AliESDFMD *	fESD
AliESDEvent *	fESDEvent
TTree *	fTreeE
TTree *	fTreeH
TTree *	fTreeTR
TTree *	fTreeD
TTree *	fTreeS
TTree *	fTreeR
TTree *	fTreeA
TChain *	fChainE
TClonesArray *	fArrayE
TClonesArray *	fArrayH
TClonesArray *	fArrayTR
TClonesArray *	fArrayD
TClonesArray *	fArrayS
TClonesArray *	fArrayR
TClonesArray *	fArrayA
AliHeader *	fHeader
TGeoManager *	fGeoManager
Int_t	fTreeMask
TString	fRawFile
TString	fInputDir
Bool_t	fIsInit
Int_t	fEventCount
Int_t	fNEvents

Additional Inherited Members
Public Types inherited from AliFMDInput
enum	ETrees {   kHits = 1, kKinematics, kDigits, kSDigits,   kHeader, kRecPoints, kESD, kRaw,   kGeometry, kTrackRefs, kRawCalib, kUser }
Static Public Member Functions inherited from AliFMDInput
static TArrayF	MakeLogScale (Int_t n, Double_t min, Double_t max)
static ETrees	ParseLoad (const char *what)
Protected Member Functions inherited from AliFMDInput
	AliFMDInput (const AliFMDInput &o)
AliFMDInput &	operator= (const AliFMDInput &)
virtual Float_t	GetSignal (UShort_t d, Char_t r, UShort_t s, UShort_t t)
Static Protected Member Functions inherited from AliFMDInput
static const char *	TreeName (ETrees tree, bool shortest=false)
static TChain *	MakeChain (const char *what, const char *datadir, bool recursive=false)
static void	ScanDirectory (TSystemDirectory *dir, const TString &olddir, TChain *chain, const char *pattern, bool recursive)
Static Protected Attributes inherited from AliFMDInput
static const ETrees	fgkAllLoads [kUser+1]

Detailed Description

Make a poisson reconstruction.

Root> .L Compile.C
Root> Compile("Poisson.C")
Root> Poisson c
Root> c.Run();

Definition at line 35 of file Poisson.C.

Constructor & Destructor Documentation

Poisson::Poisson ( Double_t  threshold = .3, Int_t  nEta = 120, Float_t  minEta = -6, Float_t  maxEta = 6, Int_t  nPhi = 4, Float_t  minPhi = 0, Float_t  maxPhi = 2*TMath::Pi()  )

inline

Constructor

Parameters

threshold	Threshold
nEta	# of \( \eta\) bins
minEta	minimum \( \eta\)
maxEta	maximum \( \eta\)
nPhi	# of \( \eta\) bins
minPhi	minimum \( \varphi\)
maxPhi	maximum \( \varphi\)

Definition at line 53 of file Poisson.C.

Member Function Documentation

virtual Bool_t Poisson::Begin ( Int_t  event )

inlinevirtual

Begining of event

Parameters

event

Event number

Returns

false on error

Reimplemented from AliFMDInput.

Reimplemented in PoissonHit.

Definition at line 89 of file Poisson.C.

Referenced by PoissonHit::Begin().

virtual Bool_t Poisson::End ( )

inlinevirtual

For each bin, reconstruct the charge particle multiplicity as

\[ m = - N_{total} \log\left(\frac{N_{empty}}{N_{total}}\right) \]

where \( N_{total}\) is the total number of strips in the bin, and \( N_{empty}\) is the number of strips in the bin that did not fire.

Returns

true

Reimplemented from AliFMDInput.

Reimplemented in PoissonHit.

Definition at line 137 of file Poisson.C.

Referenced by PoissonHit::End().

virtual Bool_t Poisson::Finish ( )

inlinevirtual

At end of run. Write and close output file poisson.root

Returns

true on success

Reimplemented from AliFMDInput.

Definition at line 161 of file Poisson.C.

virtual Bool_t Poisson::Init ( void  )

inlinevirtual

Initialize the analyser. Opens the output file.

Returns

true on success.

Reimplemented from AliFMDInput.

Reimplemented in PoissonHit.

Definition at line 79 of file Poisson.C.

Referenced by PoissonHit::Init().

virtual Bool_t Poisson::ProcessESD ( AliESDFMD *  esd )

inlinevirtual

Process ESD data. For each strip, check if the psuedo-multiplicity is less than the threshold. If it is, then count the strip as empty.

Parameters

esd

ESD data

Returns

true on success.

Definition at line 103 of file Poisson.C.

Member Data Documentation

TH2D* Poisson::fEmpty

protected

Definition at line 38 of file Poisson.C.

Referenced by PoissonHit::End(), and PoissonHit::PoissonHit().

Int_t Poisson::fEv

protected

Definition at line 42 of file Poisson.C.

TFile* Poisson::fFile

protected

Definition at line 41 of file Poisson.C.

TH2D* Poisson::fMult

protected

Definition at line 40 of file Poisson.C.

Referenced by PoissonHit::End().

Double_t Poisson::fThreshold

protected

Definition at line 43 of file Poisson.C.

TH2D* Poisson::fTotal

protected

Definition at line 39 of file Poisson.C.

Referenced by PoissonHit::End().

---

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

• FMD/scripts/Poisson.C