DataTree/interface/MCParticle.h

//--------------------------------------------------------------------------------------------------
// $Id: MCParticle.h,v 1.10 2008/12/03 16:58:17 bendavid Exp $
//
// MCParticle
//
// Stores MC information for both gen and sim level
//
// Authors: C.Loizides, J.Bendavid...
//--------------------------------------------------------------------------------------------------

#ifndef MITANA_DATATREE_MCPARTICLE_H
#define MITANA_DATATREE_MCPARTICLE_H

#include <TRef.h>
#include <TDatabasePDG.h>
#include <TParticlePDG.h> 
#include "MitAna/DataTree/interface/CompositeParticle.h"

namespace mithep 
{
  class MCParticle : public CompositeParticle
  {
    public:
      MCParticle() : fIsGenerated(kFALSE), fIsSimulated(kFALSE) {}
      MCParticle(Double_t px, Double_t py, Double_t pz, Double_t e, Int_t id, Int_t s) : 
        fPdgId(id), fStatus(s), fFourVector(FourVector(px,py,pz,e)), fDecayVertex(0,0,0),
        fIsGenerated(kFALSE), fIsSimulated(kFALSE) {}
      ~MCParticle() {}

      Int_t               AbsPdgId()               const { return (fPdgId<0 ? -fPdgId:fPdgId); }
      void                AddDaughter(const MCParticle *p) { fDaughters.Add(p); }
      Double_t            Charge()                 const;
      const ThreeVector  &DecayVertex()            const { return fDecayVertex; }
      const MCParticle   *Daughter(UInt_t i)       const;
      const MCParticle   *DistinctMother()         const;
      using CompositeParticle::HasDaughter;
      const MCParticle   *FindDaughter(Int_t pid, 
                                       Bool_t checkCharge=kFALSE, const MCParticle *start=0) const;
      const MCParticle   *FindMother(Int_t pid, Bool_t checkCharge=kFALSE) const;
      Bool_t              HasDaughter(Int_t pid, Bool_t checkCharge=kFALSE) const;
      Bool_t              HasMother()              const { return fMother.IsValid(); }
      Bool_t              HasMother(const MCParticle *m)                    const;
      Bool_t              HasMother(Int_t pid, Bool_t checkCharge=kFALSE)   const;
      Bool_t              Is(Int_t pid, Bool_t checkCharge=kFALSE)          const;
      Bool_t              IsNot(Int_t pid, Bool_t checkCharge=kFALSE)       const;
      Bool_t              IsGenerated()            const { return fIsGenerated; }
      Bool_t              IsGluon()                const { return fPdgId == kGlu; }
      Bool_t              IsNeutrino()             const;
      Bool_t              IsParton()               const { return (IsGluon() || IsQuark()); }
      Bool_t              IsQuark()                const { return (AbsPdgId()>0 && AbsPdgId()<7); }
      Bool_t              IsSimulated()            const { return fIsSimulated; }
      const MCParticle   *Mother()                 const;
      FourVector          Mom()                    const { return FourVector(fFourVector); }
      void                SetIsGenerated(Bool_t t=kTRUE) { fIsGenerated = t; }
      void                SetIsSimulated(Bool_t t=kTRUE) { fIsSimulated = t; }
      TParticlePDG       *PdgEntry()               const;
      Int_t               PdgId()                  const { return fPdgId; }
      void                SetMom(Double_t px, Double_t py, Double_t pz, Double_t e);
      void                SetMother(const MCParticle *p) { fMother = const_cast<MCParticle*>(p); }
      void                SetStatus(Int_t s)             { fStatus = s; }
      void                SetVertex(Double_t x, Double_t y, Double_t z);
      void                SetPdgId(Int_t s)              {  fPdgId = s; }
      Int_t               Status()                 const { return fStatus; }
      void                Print(Option_t *opt="")  const;

      enum EPartType {
        kUnknown=0, 
        kUp=1, kDown=2, kStrange=3, kCharm=4, kBottom=5, kTop=6,
        kEl=11, kMu=13, kTau=15, 
        kElNu=12, kMuNu=14, kTauNu=16,
        kGlu=21, kGamma=22, kZ=23, kW=24, kH=25,
        kZp=32, kZpp=33, kWp=34, kH0=35, kA0=36, kHp=37,
        kPi0=111, kEta=221
      };
      
    protected:
      Int_t               fPdgId;        //pdg identifier
      Int_t               fStatus;       //status flag of generator or simulation
      FourVectorM32       fFourVector;   //four momentum vector
      ThreeVector32       fDecayVertex;  //gen decay vertex
      TRef                fMother;       //reference to mother
      Bool_t              fIsGenerated;  //=true if generated particle
      Bool_t              fIsSimulated;  //=true if simulated particle

    ClassDef(MCParticle,3) // Generated particle class
  };
}

//--------------------------------------------------------------------------------------------------
inline const mithep::MCParticle *mithep::MCParticle::Daughter(UInt_t i) const 
{ 
  // Return daughter corresponding to given index.

  return static_cast<const MCParticle*>(fDaughters.At(i)); 
}

//--------------------------------------------------------------------------------------------------
inline const mithep::MCParticle *mithep::MCParticle::DistinctMother() const 
{ 
  // Return mother, walking up the tree until a particle with a different pdg from this one
  // is found.

  const mithep::MCParticle *mother = Mother();
  
  if (!mother) 
    return 0;
  
  while (mother->PdgId()==fPdgId)
    mother = mother->Mother();
    
  return mother;
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::HasDaughter(Int_t pid, Bool_t checkCharge) const
{
  // Return true if a particle with given pdg code is found amoung daughters.
  // If checkCharge is false then just the type of particle is checked 
  // (ie particle and anti-particle).

  if (checkCharge) {
    for (UInt_t i=0; i<NDaughters(); ++i)
      if (Daughter(i)->PdgId()==pid) 
        return kTRUE;
  } else {
    Int_t apid = pid>0?pid:-pid;
    for (UInt_t i=0; i<NDaughters(); ++i)
      if (Daughter(i)->AbsPdgId()==apid) 
        return kTRUE;
  }
  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::HasMother(const MCParticle *m) const
{
  // Return true if the given particle is among mothers. (Note the comparison
  // is made on pointers and therefore will fail if you work on copies.)

  if (!m) 
    return kFALSE;

  const mithep::MCParticle *mother = Mother();
  while (mother && mother!=m)
    mother = mother->Mother();

  if (mother) 
    return kTRUE;
  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::HasMother(Int_t pid, Bool_t checkCharge) const
{
  // Return true if a particle with given pdg code is found amoung mothers.
  // If checkCharge is false then just the type of particle is checked 
  // (ie particle and anti-particle).

  const mithep::MCParticle *mother = Mother();
  
  if (checkCharge) {
    while (mother && mother->PdgId()!=pid)
      mother = mother->Mother();
  } else {
    Int_t apid = pid>0?pid:-pid;
    while (mother && mother->AbsPdgId()!=apid)
      mother = mother->Mother();
  }

  if (mother) 
    return kTRUE;
  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::Is(Int_t pid, Bool_t checkCharge) const 
{ 
  // Return true if particle is of given type. If checkCharge is false then just the type of 
  // particle is checked (ie particle and anti-particle).

  if (checkCharge) 
    return (PdgId() == pid);

  Int_t apid = pid>0?pid:-pid;
  return (AbsPdgId() == apid);
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::IsNot(Int_t pid, Bool_t checkCharge) const 
{ 
  // Return true if particle is not of given type. If checkCharge is false then just the type of 
  // particle is checked (ie particle and anti-particle).

  return !Is(pid, checkCharge);
}

//--------------------------------------------------------------------------------------------------
inline Bool_t mithep::MCParticle::IsNeutrino() const 
{ 
  // Return true if particle is neutrino.

  Int_t ap = AbsPdgId();
  if ((ap==kElNu) ||
      (ap==kMuNu) ||
      (ap==kTauNu)) 
    return kTRUE;

  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
inline const mithep::MCParticle *mithep::MCParticle::Mother() const 
{ 
  // Return mother.

  return static_cast<const MCParticle*>(fMother.GetObject()); 
}

//--------------------------------------------------------------------------------------------------
inline TParticlePDG *mithep::MCParticle::PdgEntry() const 
{ 
  // Return entry to pdg database.

  return TDatabasePDG::Instance()->GetParticle(fPdgId); 
}

//--------------------------------------------------------------------------------------------------
inline void mithep::MCParticle::SetMom(Double_t px, Double_t py, Double_t pz, Double_t e)
{ 
  // Set four vector.

  fFourVector.SetXYZT(px, py, pz, e);
}

//--------------------------------------------------------------------------------------------------
inline void mithep::MCParticle::SetVertex(Double_t x, Double_t y, Double_t z)
{
  // Set decay vertex.

  fDecayVertex.SetXYZ(x,y,z);
}
#endif
Revision:	1.11
Committed:	Mon Dec 8 14:56:09 2008 UTC (16 years, 4 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
Changes since 1.10:	+13 -1 lines
Log Message:	Added IsParton, IsNot and IsGluon.
#	User	Rev	Content
1	bendavid	1.1	//--------------------------------------------------------------------------------------------------
2	loizides	1.11	// $Id: MCParticle.h,v 1.10 2008/12/03 16:58:17 bendavid Exp $
3	bendavid	1.1	//
4			// MCParticle
5			//
6			// Stores MC information for both gen and sim level
7			//
8			// Authors: C.Loizides, J.Bendavid...
9			//--------------------------------------------------------------------------------------------------
10
11	loizides	1.3	#ifndef MITANA_DATATREE_MCPARTICLE_H
12			#define MITANA_DATATREE_MCPARTICLE_H
13	bendavid	1.1
14			#include <TRef.h>
15			#include <TDatabasePDG.h>
16			#include <TParticlePDG.h>
17			#include "MitAna/DataTree/interface/CompositeParticle.h"
18
19			namespace mithep
20			{
21			class MCParticle : public CompositeParticle
22			{
23			public:
24			MCParticle() : fIsGenerated(kFALSE), fIsSimulated(kFALSE) {}
25			MCParticle(Double_t px, Double_t py, Double_t pz, Double_t e, Int_t id, Int_t s) :
26	loizides	1.8	fPdgId(id), fStatus(s), fFourVector(FourVector(px,py,pz,e)), fDecayVertex(0,0,0),
27	bendavid	1.1	fIsGenerated(kFALSE), fIsSimulated(kFALSE) {}
28			~MCParticle() {}
29
30	loizides	1.3	Int_t AbsPdgId() const { return (fPdgId<0 ? -fPdgId:fPdgId); }
31	bendavid	1.10	void AddDaughter(const MCParticle *p) { fDaughters.Add(p); }
32	loizides	1.3	Double_t Charge() const;
33			const ThreeVector &DecayVertex() const { return fDecayVertex; }
34			const MCParticle *Daughter(UInt_t i) const;
35	bendavid	1.4	const MCParticle *DistinctMother() const;
36	loizides	1.7	using CompositeParticle::HasDaughter;
37	loizides	1.8	const MCParticle *FindDaughter(Int_t pid,
38			Bool_t checkCharge=kFALSE, const MCParticle *start=0) const;
39			const MCParticle *FindMother(Int_t pid, Bool_t checkCharge=kFALSE) const;
40	loizides	1.7	Bool_t HasDaughter(Int_t pid, Bool_t checkCharge=kFALSE) const;
41	loizides	1.3	Bool_t HasMother() const { return fMother.IsValid(); }
42	loizides	1.9	Bool_t HasMother(const MCParticle *m) const;
43	loizides	1.8	Bool_t HasMother(Int_t pid, Bool_t checkCharge=kFALSE) const;
44	loizides	1.7	Bool_t Is(Int_t pid, Bool_t checkCharge=kFALSE) const;
45	loizides	1.11	Bool_t IsNot(Int_t pid, Bool_t checkCharge=kFALSE) const;
46	loizides	1.3	Bool_t IsGenerated() const { return fIsGenerated; }
47	loizides	1.11	Bool_t IsGluon() const { return fPdgId == kGlu; }
48	loizides	1.7	Bool_t IsNeutrino() const;
49	loizides	1.11	Bool_t IsParton() const { return (IsGluon() \|\| IsQuark()); }
50	loizides	1.7	Bool_t IsQuark() const { return (AbsPdgId()>0 && AbsPdgId()<7); }
51	loizides	1.3	Bool_t IsSimulated() const { return fIsSimulated; }
52			const MCParticle *Mother() const;
53	bendavid	1.6	FourVector Mom() const { return FourVector(fFourVector); }
54	bendavid	1.1	void SetIsGenerated(Bool_t t=kTRUE) { fIsGenerated = t; }
55			void SetIsSimulated(Bool_t t=kTRUE) { fIsSimulated = t; }
56	loizides	1.3	TParticlePDG *PdgEntry() const;
57			Int_t PdgId() const { return fPdgId; }
58	bendavid	1.1	void SetMom(Double_t px, Double_t py, Double_t pz, Double_t e);
59	bendavid	1.10	void SetMother(const MCParticle p) { fMother = const_cast<MCParticle>(p); }
60	loizides	1.3	void SetStatus(Int_t s) { fStatus = s; }
61	bendavid	1.2	void SetVertex(Double_t x, Double_t y, Double_t z);
62	ceballos	1.5	void SetPdgId(Int_t s) { fPdgId = s; }
63	loizides	1.3	Int_t Status() const { return fStatus; }
64			void Print(Option_t *opt="") const;
65	bendavid	1.1
66			enum EPartType {
67	loizides	1.7	kUnknown=0,
68			kUp=1, kDown=2, kStrange=3, kCharm=4, kBottom=5, kTop=6,
69			kEl=11, kMu=13, kTau=15,
70	bendavid	1.1	kElNu=12, kMuNu=14, kTauNu=16,
71	loizides	1.8	kGlu=21, kGamma=22, kZ=23, kW=24, kH=25,
72			kZp=32, kZpp=33, kWp=34, kH0=35, kA0=36, kHp=37,
73			kPi0=111, kEta=221
74	bendavid	1.1	};
75
76			protected:
77			Int_t fPdgId; //pdg identifier
78			Int_t fStatus; //status flag of generator or simulation
79	bendavid	1.6	FourVectorM32 fFourVector; //four momentum vector
80			ThreeVector32 fDecayVertex; //gen decay vertex
81	bendavid	1.1	TRef fMother; //reference to mother
82	loizides	1.3	Bool_t fIsGenerated; //=true if generated particle
83			Bool_t fIsSimulated; //=true if simulated particle
84	bendavid	1.1
85	bendavid	1.6	ClassDef(MCParticle,3) // Generated particle class
86	bendavid	1.1	};
87			}
88
89			//--------------------------------------------------------------------------------------------------
90	loizides	1.8	inline const mithep::MCParticle *mithep::MCParticle::Daughter(UInt_t i) const
91			{
92			// Return daughter corresponding to given index.
93
94			return static_cast<const MCParticle*>(fDaughters.At(i));
95			}
96
97			//--------------------------------------------------------------------------------------------------
98			inline const mithep::MCParticle *mithep::MCParticle::DistinctMother() const
99			{
100			// Return mother, walking up the tree until a particle with a different pdg from this one
101			// is found.
102
103			const mithep::MCParticle *mother = Mother();
104
105			if (!mother)
106			return 0;
107
108			while (mother->PdgId()==fPdgId)
109			mother = mother->Mother();
110
111			return mother;
112			}
113
114			//--------------------------------------------------------------------------------------------------
115	loizides	1.7	inline Bool_t mithep::MCParticle::HasDaughter(Int_t pid, Bool_t checkCharge) const
116			{
117			// Return true if a particle with given pdg code is found amoung daughters.
118			// If checkCharge is false then just the type of particle is checked
119			// (ie particle and anti-particle).
120
121			if (checkCharge) {
122			for (UInt_t i=0; i<NDaughters(); ++i)
123			if (Daughter(i)->PdgId()==pid)
124			return kTRUE;
125			} else {
126			Int_t apid = pid>0?pid:-pid;
127			for (UInt_t i=0; i<NDaughters(); ++i)
128			if (Daughter(i)->AbsPdgId()==apid)
129			return kTRUE;
130			}
131			return kFALSE;
132			}
133
134			//--------------------------------------------------------------------------------------------------
135	loizides	1.9	inline Bool_t mithep::MCParticle::HasMother(const MCParticle *m) const
136			{
137			// Return true if the given particle is among mothers. (Note the comparison
138			// is made on pointers and therefore will fail if you work on copies.)
139
140			if (!m)
141			return kFALSE;
142
143			const mithep::MCParticle *mother = Mother();
144			while (mother && mother!=m)
145			mother = mother->Mother();
146
147			if (mother)
148			return kTRUE;
149			return kFALSE;
150			}
151
152			//--------------------------------------------------------------------------------------------------
153	loizides	1.8	inline Bool_t mithep::MCParticle::HasMother(Int_t pid, Bool_t checkCharge) const
154			{
155			// Return true if a particle with given pdg code is found amoung mothers.
156			// If checkCharge is false then just the type of particle is checked
157			// (ie particle and anti-particle).
158	bendavid	1.4
159			const mithep::MCParticle *mother = Mother();
160
161	loizides	1.8	if (checkCharge) {
162	loizides	1.9	while (mother && mother->PdgId()!=pid)
163	loizides	1.8	mother = mother->Mother();
164			} else {
165			Int_t apid = pid>0?pid:-pid;
166	loizides	1.9	while (mother && mother->AbsPdgId()!=apid)
167	loizides	1.8	mother = mother->Mother();
168			}
169	bendavid	1.4
170	loizides	1.8	if (mother)
171			return kTRUE;
172			return kFALSE;
173	bendavid	1.1	}
174
175			//--------------------------------------------------------------------------------------------------
176	loizides	1.7	inline Bool_t mithep::MCParticle::Is(Int_t pid, Bool_t checkCharge) const
177			{
178			// Return true if particle is of given type. If checkCharge is false then just the type of
179			// particle is checked (ie particle and anti-particle).
180
181			if (checkCharge)
182			return (PdgId() == pid);
183
184			Int_t apid = pid>0?pid:-pid;
185			return (AbsPdgId() == apid);
186			}
187
188			//--------------------------------------------------------------------------------------------------
189	loizides	1.11	inline Bool_t mithep::MCParticle::IsNot(Int_t pid, Bool_t checkCharge) const
190			{
191			// Return true if particle is not of given type. If checkCharge is false then just the type of
192			// particle is checked (ie particle and anti-particle).
193
194			return !Is(pid, checkCharge);
195			}
196
197			//--------------------------------------------------------------------------------------------------
198	bendavid	1.1	inline Bool_t mithep::MCParticle::IsNeutrino() const
199			{
200			// Return true if particle is neutrino.
201
202			Int_t ap = AbsPdgId();
203			if ((ap==kElNu) \|\|
204			(ap==kMuNu) \|\|
205			(ap==kTauNu))
206			return kTRUE;
207
208			return kFALSE;
209			}
210
211			//--------------------------------------------------------------------------------------------------
212	loizides	1.8	inline const mithep::MCParticle *mithep::MCParticle::Mother() const
213			{
214			// Return mother.
215
216			return static_cast<const MCParticle*>(fMother.GetObject());
217			}
218
219			//--------------------------------------------------------------------------------------------------
220	bendavid	1.1	inline TParticlePDG *mithep::MCParticle::PdgEntry() const
221			{
222			// Return entry to pdg database.
223
224			return TDatabasePDG::Instance()->GetParticle(fPdgId);
225			}
226
227			//--------------------------------------------------------------------------------------------------
228			inline void mithep::MCParticle::SetMom(Double_t px, Double_t py, Double_t pz, Double_t e)
229			{
230			// Set four vector.
231
232			fFourVector.SetXYZT(px, py, pz, e);
233			}
234
235			//--------------------------------------------------------------------------------------------------
236			inline void mithep::MCParticle::SetVertex(Double_t x, Double_t y, Double_t z)
237			{
238			// Set decay vertex.
239
240			fDecayVertex.SetXYZ(x,y,z);
241			}
242			#endif