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AliRoot » PWGCF » FEMTOSCOPY » UNICOR » AliUnicorPair

class AliUnicorPair: public TObject

 particle (track) pair
 Allows to calculate the kinematic pair variables typically used in
 two-particle correlation analyses.

Function Members (Methods)

public:

	AliUnicorPair()
	AliUnicorPair(const AliUnicorPair&)
virtual	~AliUnicorPair()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
void	CalcLAB()
void	CalcLcmsCM()
void	CalcPairCM()
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)
double	DPhi() const
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
double	DTheta() const
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
virtual const char*	TObject::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() 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
double	Minv() 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)
AliUnicorPair&	operator=(const AliUnicorPair&)
virtual void	TObject::Paint(Option_t* option = "")
double	Phi() const
virtual void	TObject::Pop()
virtual void	TObject::Print(Option_t* option = "") const
double	Pt() const
double	QCM() const
double	QCMlong() const
double	QCMout() const
double	QCMpar() const
double	QCMper() const
double	QCMPhi() const
double	QCMPhiOut() const
double	QCMside() const
double	QCMTheta() const
double	Qinv2() const
double	Rapidity() 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	Set0(double m, double p, double theta, double phi)
void	Set1(double m, double p, double theta, double phi)
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	SetMXYZ0(double m, double px, double py, double pz)
void	SetMXYZ1(double m, double px, double py, double pz)
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)
void	Swap()
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()

Data Members

public:

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

protected:

TVector3	fBeta	LAB pair velocity
TVector3	fBetat	LAB pair velocity transverse
TVector3	fBetaz	LAB pair velocity along z
TLorentzVector	fBuf	dummy buffer for swapping
TLorentzVector	fCMp	CM total four-momentum
TLorentzVector	fCMq	CM four-momentum difference
TLorentzVector	fP	LAB total four-momentum
TLorentzVector	fP0	LAB four-momentum of track 0
TLorentzVector	fP1	LAB four-momentum of track 1
TLorentzVector	fQ	LAB four-momentum difference
TVector3	fUbeta	LAB pair velocity direction
TVector3	fUbetat	LAB pair velocity transverse direction
TVector3	fUbetaz	LAB pair velocity along z direction (hm)

Class Charts

Inheritance Chart:

TObject

←

AliUnicorPair

Function documentation

AliUnicorPair()

{}

virtual ~AliUnicorPair()

{}

void Set0(double m, double p, double theta, double phi)

{fP0.SetXYZM(0,0,p,m); fP0.SetTheta(theta); fP0.SetPhi(phi);}

void Set1(double m, double p, double theta, double phi)

{fP1.SetXYZM(0,0,p,m); fP1.SetTheta(theta); fP1.SetPhi(phi);}

void SetMXYZ0(double m, double px, double py, double pz)

{fP0.SetXYZM(px,py,pz,m);}

void SetMXYZ1(double m, double px, double py, double pz)

{fP1.SetXYZM(px,py,pz,m);}

void CalcLAB()

double Rapidity() const

{return fP.Rapidity();}

double Pt() const

{return fP.Pt();}

double Phi() const

{return fP.Phi();}

double DTheta() const

{return fP1.Theta()-fP0.Theta();}

double DPhi() const

{return TVector2::Phi_mpi_pi(fP1.Phi()-fP0.Phi());}

void CalcPairCM()

{fCMp.Boost(-fBeta); fCMq.Boost(-fBeta);}

void CalcLcmsCM()

{fCMp.Boost(-fBetaz); fCMq.Boost(-fBetaz);}

void Swap()

{fBuf=fP0; fP0=fP1; fP1=fBuf; fQ=-fQ; fCMq=-fCMq;}

double Minv() const

{return fP.M();}

double Qinv2() const

{return -fQ.M2();}

double QCM() const

{return fCMq.Vect().Mag();}

double QCMpar() const

{return fCMq.Vect()*fUbeta;}

double QCMper() const

{return sqrt(fabs(QCM()*QCM()-QCMpar()*QCMpar()));}

double QCMout() const

{return +fCMq.Vect().X()*fUbetat.X()+fCMq.Vect().Y()*fUbetat.Y();}

double QCMside() const

{return -fCMq.Vect().X()*fUbetat.Y()+fCMq.Vect().Y()*fUbetat.X();}

double QCMlong() const

{return fCMq.Vect().Z();}

double QCMTheta() const

{return fCMq.Theta();}

double QCMPhi() const

{return fCMq.Phi();}

double QCMPhiOut() const

{return atan2(QCMside(),QCMout());}