/* $Id$ */
-#include "AliGenerator.h"
-#include "AliDecayer.h"
-#include <TArrayI.h>
+// Base class for generators using external MC generators.
+// For example AliGenPythia using Pythia.
+// Provides basic functionality: setting of kinematic cuts on
+// decay products and particle selection.
+// andreas.morsch@cern.ch
+#include<TClonesArray.h>
+#include <TArrayI.h>
+#include <TString.h>
class TParticle;
+class AliGeometry;
+class AliGenEventHeader;
+#include "AliGenerator.h"
+#include "AliDecayer.h"
+
class AliGenMC : public AliGenerator
{
public:
AliGenMC();
AliGenMC(Int_t npart);
- AliGenMC(const AliGenMC &MC);
virtual ~AliGenMC();
- void Init();
+ virtual void Init();
virtual void SetForceDecay(Decay_t decay = kAll) {fForceDecay = decay;}
- AliGenMC & operator=(const AliGenMC & rhs);
- virtual void SetCutOnChild(Int_t flag = 0) {fCutOnChild = flag;}
+ virtual void SetCutOnChild(Int_t flag = 0) {fCutOnChild = flag;}
virtual void SetChildMomentumRange(Float_t pmin = 0, Float_t pmax = 1.e10)
{fChildPMin = pmin; fChildPMax = pmax;}
virtual void SetChildPtRange(Float_t ptmin = 0, Float_t ptmax = 20.)
{fChildPtMin = ptmin; fChildPtMax = ptmax;}
- virtual void SetChildPhiRange(Float_t phimin = -180., Float_t phimax = 180)
+ virtual void SetChildPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
{fChildPhiMin = TMath::Pi()*phimin/180;
fChildPhiMax = TMath::Pi()*phimax/180;}
virtual void SetChildThetaRange(Float_t thetamin = 0, Float_t thetamax = 180)
virtual void SetChildYRange(Float_t ymin = -12, Float_t ymax = 12)
{fChildYMin = ymin;
fChildYMax = ymax;}
+ virtual void SetMaximumLifetime(Float_t time = 1.e-15) {fMaxLifeTime = time;}
+
+ virtual void SetGeometryAcceptance(AliGeometry * GeometryAcceptance=0) {fGeometryAcceptance = GeometryAcceptance;}
+
+ virtual void SetPdgCodeParticleforAcceptanceCut(Int_t PdgCodeParticleforAcceptanceCut=0) {fPdgCodeParticleforAcceptanceCut = PdgCodeParticleforAcceptanceCut;}
+
+ virtual void SetNumberOfAcceptedParticles(Int_t NumberOfAcceptedParticles=2) {fNumberOfAcceptedParticles = NumberOfAcceptedParticles;}
+
+ virtual Bool_t CheckAcceptanceGeometry(Int_t np, TClonesArray* particles);
+ virtual void SetProjectile(TString proj="P", Int_t a = 1, Int_t z = 1)
+ {fProjectile = proj; fAProjectile = a; fZProjectile = z;}
+ virtual void SetTarget(TString tar="P", Int_t a = 1, Int_t z = 1)
+ {fTarget = tar; fATarget = a; fZTarget = z;}
+ virtual void SetCrossingAngle(Float_t phiX, Float_t phiY) {fXingAngleX = phiX; fXingAngleY = phiY;}
+ virtual void Boost();
+ virtual void SetDyBoost(Double_t dyBoost = 0.) {fDyBoost = dyBoost;}
+ virtual void BeamCrossAngle();
+ virtual void AddHeader(AliGenEventHeader* header);
protected:
// check if particle is selected as parent particle
- Bool_t ParentSelected(Int_t ip);
+ Bool_t ParentSelected(Int_t ip) const;
// check if particle is selected as child particle
- Bool_t ChildSelected(Int_t ip);
+ Bool_t ChildSelected(Int_t ip) const;
// all kinematic selection cuts go here
- Bool_t KinematicSelection(TParticle *particle, Int_t flag);
- Int_t CheckPDGCode(Int_t pdgcode);
+ Bool_t KinematicSelection(const TParticle *particle, Int_t flag) const;
+ Int_t CheckPDGCode(Int_t pdgcode) const;
protected:
- TArrayI fParentSelect; // Parent particles to be selected
- TArrayI fChildSelect; // Decay products to be selected
- Int_t fCutOnChild; // Cuts on decay products (children) are enabled/disabled
- Float_t fChildPtMin; // Children minimum pT
- Float_t fChildPtMax; // Children maximum pT
- Float_t fChildPMin; // Children minimum p
- Float_t fChildPMax; // Children maximum p
- Float_t fChildPhiMin; // Children minimum phi
- Float_t fChildPhiMax; // Children maximum phi
- Float_t fChildThetaMin; // Children minimum theta
- Float_t fChildThetaMax; // Children maximum theta
- Float_t fChildYMin; // Children minimum y
- Float_t fChildYMax; // Children maximum y
- Decay_t fForceDecay; // Decay channel forced
- ClassDef(AliGenMC,2) // AliGenerator implementation for generators using MC methods
+ TClonesArray fParticles; //!Particle List
+ TArrayI fParentSelect; //!Parent particles to be selected
+ TArrayI fChildSelect; //!Decay products to be selected
+ Int_t fCutOnChild; // Cuts on decay products (children) are enabled/disabled
+ Float_t fChildPtMin; // Children minimum pT
+ Float_t fChildPtMax; // Children maximum pT
+ Float_t fChildPMin; // Children minimum p
+ Float_t fChildPMax; // Children maximum p
+ Float_t fChildPhiMin; // Children minimum phi
+ Float_t fChildPhiMax; // Children maximum phi
+ Float_t fChildThetaMin; // Children minimum theta
+ Float_t fChildThetaMax; // Children maximum theta
+ Float_t fChildYMin; // Children minimum y
+ Float_t fChildYMax; // Children maximum y
+ Float_t fXingAngleX; // Crossing angle X
+ Float_t fXingAngleY; // Crossing angle Y
+ Decay_t fForceDecay; // Decay channel forced
+ Float_t fMaxLifeTime; // Maximum lifetime for unstable particles
+ Double_t fDyBoost; // dy for boost into lab frame
+ AliGeometry* fGeometryAcceptance; // Geometry to which particles must be simulated
+ Int_t fPdgCodeParticleforAcceptanceCut; // Abs(PDG Code) of the particle to which the GeometryAcceptance must be applied
+ Int_t fNumberOfAcceptedParticles; // Number of accepted particles in GeometryAcceptance with the right Abs(PdgCode)
+ Int_t fNprimaries; // Number of produced and stored particles
+
+ private:
+ AliGenMC(const AliGenMC &MC);
+ AliGenMC & operator=(const AliGenMC & rhs);
+
+ ClassDef(AliGenMC,7) // AliGenerator implementation for generators using MC methods
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff