PndSmpCand Class Reference

Simple particle candidate to perform simple combinatorics and particle counting for event filtering. More...

#include <PndSmpCand.h>

Public Member Functions
	PndSmpCand ()
	Default constructor. More...
	PndSmpCand (TLorentzVector lv, Float_t chrg, Int_t pdg=0, Int_t uid=-1)
	Constructor from Lorentz vector reference. More...
	PndSmpCand (TLorentzVector *lv, Float_t chrg, Int_t pdg=0, Int_t uid=-1)
	Constructor from pointer to Lorentz vector . More...
	PndSmpCand (Int_t pdg, PndSmpCand &c0, PndSmpCand &c1)
	Constructor from 2 daughters. Calls CombCand. More...
	PndSmpCand (Int_t pdg, PndSmpCand &c0, PndSmpCand &c1, PndSmpCand &c2)
	Constructor from 3 daughters. Calls CombCand. More...
	PndSmpCand (Int_t pdg, PndSmpCand &c0, PndSmpCand &c1, PndSmpCand &c2, PndSmpCand &c3)
	Constructor from 4 daughters. Calls CombCand. More...
	PndSmpCand (Int_t pdg, PndSmpCand &c0, PndSmpCand &c1, PndSmpCand &c2, PndSmpCand &c3, PndSmpCand &c4)
	Constructor from 5 daughters. Calls CombCand. More...
	PndSmpCand (Int_t pdg, PndSmpCand *c0, PndSmpCand *c1, PndSmpCand *c2=0, PndSmpCand *c3=0, PndSmpCand *c4=0)
	Constructor from up to 5 daughter pointers. Calls CombCand. More...
void	SetP4 (TLorentzVector p4)
	Sets LorentzVector. More...
void	SetM (Double_t m)
	Sets mass (used for different mass hypotheses in filter. More...
void	SetCharge (Float_t ch)
	Sets charge. More...
Bool_t	operator== (const PndSmpCand &c1) const
	Overload of == operator needed to compare std::vectors of candidates. More...
Bool_t	operator!= (const PndSmpCand &c1) const
	Overload of == operator needed to compare std::vectors of candidates. More...
void	CombCand (Int_t pdg, PndSmpCand *c0, PndSmpCand *c1, PndSmpCand *c2=0, PndSmpCand *c3=0, PndSmpCand *c4=0)
	Combines this candidate from several daughters (adds P4 and charges). More...
TLorentzVector	P4 ()
Float_t	Charge ()
Int_t	Pdg ()
Int_t	NDau ()
ULong_t	Marker ()
PndSmpCand *	Dau (Int_t idx)
Bool_t	Overlap (PndSmpCand *c)
Bool_t	Overlap (PndSmpCand &c)
void	Print ()

Private Member Functions
void	PrintBinary (ULong_t x)
	Prints a unsigned int as bit string. More...

Private Attributes
TLorentzVector	fLV
Float_t	fCharge
Int_t	fPdgCode
Int_t	fUniqueID
ULong_t	fMarker
Int_t	fNDau
PndSmpCand *	fDaughter [5]

Detailed Description

Simple particle candidate to perform simple combinatorics and particle counting for event filtering.

Author

Klaus Goetzen <k [dot] goetzen (at) gsi [dot] de>

This class defines a simple particle candidate, which allows simple combinatoric with overlap check and provides access to its internal 4-vector.

Definition at line 23 of file PndSmpCand.h.

Constructor & Destructor Documentation

PndSmpCand::PndSmpCand ( )

inline

Default constructor.

Definition at line 27 of file PndSmpCand.h.

{};

PndSmpCand::PndSmpCand	(	TLorentzVector	lv,
		Float_t	chrg,
		Int_t	pdg = 0,
		Int_t	uid = -1
	)

Constructor from Lorentz vector reference.

Definition at line 17 of file PndSmpCand.cxx.

References fDaughter, fMarker, fUniqueID, and i.

                                                                            : 
        fLV(lv), fCharge(chrg), fPdgCode(pdg), fUniqueID(uid), fMarker(0), fNDau(0)
{
        for (int i=0;i<5;++i) fDaughter[i] = 0;
        if (uid>=0) fMarker = 1<<fUniqueID;
}

PndSmpCand::PndSmpCand	(	TLorentzVector *	lv,
		Float_t	chrg,
		Int_t	pdg = 0,
		Int_t	uid = -1
	)

Constructor from pointer to Lorentz vector .

Definition at line 26 of file PndSmpCand.cxx.

References fDaughter, fMarker, fUniqueID, and i.

                                                                             : 
        fLV(*lv), fCharge(chrg), fPdgCode(pdg), fUniqueID(uid), fMarker(0), fNDau(0)
{
        for (int i=0;i<5;++i) fDaughter[i] = 0;
        if (uid>=0) fMarker = 1<<fUniqueID;
}

PndSmpCand::PndSmpCand ( Int_t  pdg, PndSmpCand &  c0, PndSmpCand &  c1  )

inline

Constructor from 2 daughters. Calls CombCand.

Definition at line 36 of file PndSmpCand.h.

References CombCand().

{ CombCand(pdg, &c0, &c1); }

PndSmpCand::PndSmpCand ( Int_t  pdg, PndSmpCand &  c0, PndSmpCand &  c1, PndSmpCand &  c2  )

inline

Constructor from 3 daughters. Calls CombCand.

Definition at line 38 of file PndSmpCand.h.

References CombCand().

{ CombCand(pdg, &c0, &c1, &c2); }

PndSmpCand::PndSmpCand ( Int_t  pdg, PndSmpCand &  c0, PndSmpCand &  c1, PndSmpCand &  c2, PndSmpCand &  c3  )

inline

Constructor from 4 daughters. Calls CombCand.

Definition at line 40 of file PndSmpCand.h.

References CombCand().

{ CombCand(pdg, &c0, &c1, &c2, &c3); }

PndSmpCand::PndSmpCand ( Int_t  pdg, PndSmpCand &  c0, PndSmpCand &  c1, PndSmpCand &  c2, PndSmpCand &  c3, PndSmpCand &  c4  )

inline

Constructor from 5 daughters. Calls CombCand.

Definition at line 42 of file PndSmpCand.h.

References CombCand().

{ CombCand(pdg, &c0, &c1, &c2, &c3, &c4); }

PndSmpCand::PndSmpCand ( Int_t  pdg, PndSmpCand *  c0, PndSmpCand *  c1, PndSmpCand *  c2 = 0, PndSmpCand *  c3 = 0, PndSmpCand *  c4 = 0  )

inline

Constructor from up to 5 daughter pointers. Calls CombCand.

Definition at line 45 of file PndSmpCand.h.

References c2, c3, c4, and CombCand().

{ CombCand(pdg, c0, c1, c2, c3, c4); }

Member Function Documentation

Float_t PndSmpCand::Charge ( )

inline

Definition at line 65 of file PndSmpCand.h.

References fCharge.

{ return fCharge; }

void PndSmpCand::CombCand	(	Int_t	pdg,
		PndSmpCand *	c0,
		PndSmpCand *	c1,
		PndSmpCand *	c2 = 0,
		PndSmpCand *	c3 = 0,
		PndSmpCand *	c4 = 0
	)

Combines this candidate from several daughters (adds P4 and charges).

Definition at line 45 of file PndSmpCand.cxx.

References c1, c2, c3, c4, fCharge, fDaughter, fLV, fMarker, fNDau, fPdgCode, and fUniqueID.

Referenced by PndSmpCand().

{
        fPdgCode     = pdg;
        fNDau        = 2;

        fDaughter[0] = c0;
        fDaughter[1] = c1;
        
        fMarker      = c0->fMarker  | c1->fMarker;
        fLV          = c0->fLV      + c1->fLV;
        fCharge      = c0->fCharge  + c1->fCharge;
        fUniqueID    = -1;
        
        if (0!=c2) { fDaughter[fNDau++] = c2; fLV += c2->fLV; fCharge += c2->fCharge; fMarker |= c2->fMarker; }
        if (0!=c3) { fDaughter[fNDau++] = c3; fLV += c3->fLV; fCharge += c3->fCharge; fMarker |= c3->fMarker; }
        if (0!=c4) { fDaughter[fNDau++] = c4; fLV += c4->fLV; fCharge += c4->fCharge; fMarker |= c4->fMarker; }
}

PndSmpCand* PndSmpCand::Dau ( Int_t  idx )

inline

Definition at line 69 of file PndSmpCand.h.

References fDaughter, fNDau, and idx.

{ if (idx>=0 && idx<fNDau) return fDaughter[idx]; else return 0; }

ULong_t PndSmpCand::Marker ( )

inline

Definition at line 68 of file PndSmpCand.h.

References fMarker.

{ return fMarker; }     

Int_t PndSmpCand::NDau ( )

inline

Definition at line 67 of file PndSmpCand.h.

References fNDau.

{ return fNDau; }

Bool_t PndSmpCand::operator!= ( const PndSmpCand &  c1 ) const

inline

Overload of == operator needed to compare std::vectors of candidates.

Definition at line 59 of file PndSmpCand.h.

References c1.

{ return !(*this==c1); }

Bool_t PndSmpCand::operator== ( const PndSmpCand &  c1 ) const

inline

Overload of == operator needed to compare std::vectors of candidates.

Definition at line 57 of file PndSmpCand.h.

References fMarker, and fPdgCode.

{ return (c1.fMarker == fMarker ) && ( c1.fPdgCode == fPdgCode) ;}

Bool_t PndSmpCand::Overlap ( PndSmpCand *  c )

inline

Definition at line 70 of file PndSmpCand.h.

References fMarker.

Referenced by PndFilteredPrimaryGenerator::CombineList().

{ return fMarker & c->fMarker; }

Bool_t PndSmpCand::Overlap ( PndSmpCand &  c )

inline

Definition at line 71 of file PndSmpCand.h.

References fMarker.

{ return fMarker & c.fMarker; } 

TLorentzVector PndSmpCand::P4 ( )

inline

Definition at line 64 of file PndSmpCand.h.

References fLV.

{ return fLV; }

Int_t PndSmpCand::Pdg ( )

inline

Definition at line 66 of file PndSmpCand.h.

References fPdgCode.

{ return fPdgCode; }

void PndSmpCand::Print

(

)

Definition at line 35 of file PndSmpCand.cxx.

References fCharge, fLV, fMarker, fPdgCode, fUniqueID, PrintBinary(), and printf().

{
        printf("uid:%3d  lv:(%7.3f,%7.3f,%7.3f,%7.3f ; m:%7.3f, p:%7.3f, pt:%7.3f, tht:%6.1f, phi:%7.1f)  ch:%2.0f  pdg:%6d  marker:%8lu (",
                fUniqueID, fLV.Px(), fLV.Py(), fLV.Pz(), fLV.E(), fLV.M(), fLV.P(), fLV.Pt(), fLV.Theta()*57.296, fLV.Phi()*57.296, fCharge, fPdgCode, fMarker);
        PrintBinary(fMarker);
        printf(")\n");
}

void PndSmpCand::PrintBinary ( ULong_t  x )

inlineprivate

Prints a unsigned int as bit string.

Definition at line 77 of file PndSmpCand.h.

Referenced by Print().

        {
                ULong_t bit=ULong_t(1)<<63;
                while (bit) {cout << ((x&bit)?1:0);  bit>>=1; if (bit & 0x8080808080808080) cout <<" ";}
        }

void PndSmpCand::SetCharge ( Float_t  ch )

inline

Sets charge.

Definition at line 53 of file PndSmpCand.h.

References fCharge.

{ fCharge = ch; }

void PndSmpCand::SetM ( Double_t  m )

inline

Sets mass (used for different mass hypotheses in filter.

Definition at line 51 of file PndSmpCand.h.

References fLV, and m.

{ fLV.SetVectM(fLV.Vect(), m); }

void PndSmpCand::SetP4 ( TLorentzVector  p4 )

inline

Sets LorentzVector.

Definition at line 49 of file PndSmpCand.h.

References fLV.

Referenced by PndFilteredPrimaryGenerator::GenerateEvent().

{ fLV     = p4; }

Member Data Documentation

Float_t PndSmpCand::fCharge

private

Definition at line 85 of file PndSmpCand.h.

Referenced by Charge(), CombCand(), Print(), and SetCharge().

PndSmpCand* PndSmpCand::fDaughter[5]

private

Definition at line 90 of file PndSmpCand.h.

Referenced by CombCand(), Dau(), and PndSmpCand().

TLorentzVector PndSmpCand::fLV

private

Definition at line 84 of file PndSmpCand.h.

Referenced by CombCand(), P4(), Print(), SetM(), and SetP4().

ULong_t PndSmpCand::fMarker

private

Definition at line 88 of file PndSmpCand.h.

Referenced by CombCand(), Marker(), operator==(), Overlap(), PndSmpCand(), and Print().

Int_t PndSmpCand::fNDau

private

Definition at line 89 of file PndSmpCand.h.

Referenced by CombCand(), Dau(), and NDau().

Int_t PndSmpCand::fPdgCode

private

Definition at line 86 of file PndSmpCand.h.

Referenced by CombCand(), operator==(), Pdg(), and Print().

Int_t PndSmpCand::fUniqueID

private

Definition at line 87 of file PndSmpCand.h.

Referenced by CombCand(), PndSmpCand(), and Print().

---

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

• PndSmpCand.h
• PndSmpCand.cxx