class AliITSPIDResponse: public TObject

 ITS PID method # 1
           Implementation of the ITS PID class
 Very naive one... Should be made better by the detector experts...
      Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch

Function Members (Methods)

public:

	AliITSPIDResponse(Bool_t isMC = kFALSE)
	AliITSPIDResponse(const AliITSPIDResponse&)
virtual	~AliITSPIDResponse()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
Double_t	Bethe(Double_t p, Double_t mass, Bool_t isSA = kFALSE) const
Double_t	Bethe(Double_t p, AliPID::EParticleType species, Bool_t isSA = kFALSE) const
Double_t	BetheAleph(Double_t p, Double_t mass) const
Double_t	BetheITSsaHybrid(Double_t p, Double_t mass) const
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual Int_t	TObject::Compare(const TObject* obj) const
virtual void	TObject::Copy(TObject& object) const
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
void	GetITSProbabilities(Float_t mom, Double_t* qclu, Double_t* condprobfun, Bool_t isMC = kFALSE) const
virtual const char*	TObject::GetName() const
Double_t	GetNumberOfSigmas(const AliVTrack* track, AliPID::EParticleType species) const
Float_t	GetNumberOfSigmas(Float_t mom, Float_t signal, AliPID::EParticleType type, Int_t nPtsForPid = 4, Bool_t isSA = kFALSE) const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
Int_t	GetParticleIdFromdEdxVsP(Float_t mom, Float_t signal, Bool_t isSA = kFALSE) const
Double_t	GetResolution(Double_t bethe, Int_t nPtsForPid = 4, Bool_t isSA = kFALSE, Double_t p = 0., AliPID::EParticleType type = AliPID::kPion) const
Double_t	GetSignalDelta(const AliVTrack* track, AliPID::EParticleType species, Bool_t ratio = kFALSE) const
virtual const char*	TObject::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
AliITSPIDResponse&	operator=(const AliITSPIDResponse&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	TObject::Print(Option_t* option = "") const
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
void	SetBetheBlochHybridParamsITSsa(Double_t* param)
void	SetBetheBlochParamsITSsa(Double_t* param)
void	SetBetheBlochParamsITSTPC(Double_t* param)
void	SetBetheBlochParamsITSTPCDeuteron(Double_t* param)
void	SetBetheBlochParamsITSTPCTriton(Double_t* param)
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
void	SetElectronBetheBlochParamsITSsa(Double_t* param)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector&)
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	TObject::MakeZombie()

private:

Double_t

Bethe(Double_t bg, const Double_t *const par, Bool_t isNuclei) const

Data Members

public:

enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

private:

Double_t	fBBdeu[5]	parameters of deuteron BB for TPC+ITS tracks
Double_t	fBBsa[5]	parameters of BB for SA tracks
Double_t	fBBsaElectron[5]	parameters of electron BB for SA tracks
Double_t	fBBsaHybrid[9]	parameters of Hybrid BB for SA tracks, PHOB + Polinomial al low beta*gamma
Double_t	fBBtpcits[5]	parameters of BB for TPC+ITS tracks
Double_t	fBBtri[5]	parameters of triton BB for TPC+ITS tracks
Double_t	fKp1	ALEPH BB param 1
Double_t	fKp2	ALEPH BB param 2
Double_t	fKp3	ALEPH BB param 3
Double_t	fKp4	ALEPH BB param 4
Double_t	fKp5	ALEPH BB param
Float_t	fRes	relative dEdx resolution
Float_t	fResolSA[5]	resolutions vs. n. of SDD/SSD points
Float_t	fResolTPCITS[5]	resolutions vs. n. of SDD/SSD points
Double_t	fResolTPCITSDeu3[3]	deuteron resolutions vs. p for tracks with 3 SDD/SSD points
Double_t	fResolTPCITSDeu4[3]	deuteron resolutions vs. p for tracks with 4 SDD/SSD points
Double_t	fResolTPCITSTri3[3]	triton resolutions vs. p for tracks with 3 SDD/SSD points
Double_t	fResolTPCITSTri4[3]	triton resolutions vs. p for tracks with 4 SDD/SSD points

Class Charts

Inheritance Chart:

TObject

←

AliITSPIDResponse

Function documentation

AliITSPIDResponse(Bool_t isMC = kFALSE)

Double_t BetheAleph(Double_t p, Double_t mass) const

 returns AliExternalTrackParam::BetheBloch normalized to
 fgMIP at the minimum

Double_t Bethe(Double_t bg, const Double_t *const par, Bool_t isNuclei) const

Double_t Bethe(Double_t p, Double_t mass, Bool_t isSA = kFALSE) const

Double_t Bethe(Double_t p, AliPID::EParticleType species, Bool_t isSA = kFALSE) const

 NEW - to be used
 Alternative bethe function assuming a particle type not a mass
 should be slightly faster

Double_t BetheITSsaHybrid(Double_t p, Double_t mass) const

 returns AliExternalTrackParam::BetheBloch normalized to
 fgMIP at the minimum. The PHOBOS parameterization is used for beta*gamma>0.76.
 For beta*gamma<0.76 a polinomial function is used

Double_t GetResolution(Double_t bethe, Int_t nPtsForPid = 4, Bool_t isSA = kFALSE, Double_t p = 0., AliPID::EParticleType type = AliPID::kPion) const

 Calculate expected resolution for truncated mean

 NEW: Added new variables which are Double_t p and AliPID::EParticleType type
 AliPID::EParticleType type is used to set the correct resolution for the different particles
 default -> AliPID::EParticleType type = AliPID::kPion
 Double_t p is used for the resolution of deuteron and triton, because they are function of the momentum
 default -> Double_t p=0.

void GetITSProbabilities(Float_t mom, Double_t* qclu, Double_t* condprobfun, Bool_t isMC = kFALSE) const

 Method to calculate PID probabilities for a single track
 using the likelihood method

Double_t GetNumberOfSigmas(const AliVTrack* track, AliPID::EParticleType species) const

 number of sigmas

Double_t GetSignalDelta(const AliVTrack* track, AliPID::EParticleType species, Bool_t ratio = kFALSE) const

 Signal - expected

Int_t GetParticleIdFromdEdxVsP(Float_t mom, Float_t signal, Bool_t isSA = kFALSE) const

 method to get particle identity with simple cuts on dE/dx vs. momentum

AliITSPIDResponse(Bool_t isMC = kFALSE)

AliITSPIDResponse(Double_t *param);

~AliITSPIDResponse()

{}

void SetBetheBlochParamsITSTPC(Double_t* param)

void SetBetheBlochParamsITSTPCDeuteron(Double_t* param)

void SetBetheBlochParamsITSTPCTriton(Double_t* param)

void SetBetheBlochParamsITSsa(Double_t* param)

void SetBetheBlochHybridParamsITSsa(Double_t* param)

void SetElectronBetheBlochParamsITSsa(Double_t* param)

Double_t GetNumberOfSigmas(const AliVTrack* track, AliPID::EParticleType species) const