#ifndef ALIGENERATOR_H
#define ALIGENERATOR_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/* $Id$ */
+
///////////////////////////////////////////////////////////
// //
// Class to generate the particles for the MC //
// //
///////////////////////////////////////////////////////////
-#include "TNamed.h"
-#include "TArrayF.h"
-#include "TGenerator.h"
+#include <TArrayF.h>
+#include <TLorentzVector.h>
+#include <TMCProcess.h>
+
+#include "AliRndm.h"
+
+class AliVertexGenerator;
+class AliCollisionGeometry;
+class AliGenEventHeader;
+class AliStack;
+class TGenerator;
-typedef enum { none, perEvent, perTrack } VertexSmear_t;
-class AliGenerator : public TNamed
+
+typedef enum { kNoSmear, kPerEvent, kPerTrack } VertexSmear_t;
+typedef enum { kExternal, kInternal, kContainer} VertexSource_t;
+
+
+class AliGenerator : public TNamed, public AliRndm
{
-protected:
- static TGenerator* fgMCEvGen;
+ public:
+
+ AliGenerator();
+ AliGenerator(Int_t npart);
+ virtual ~AliGenerator();
+ virtual void Init();
+ virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz);
+ virtual void SetOrigin(const TLorentzVector &o);
+ virtual void SetSigma(Float_t sx, Float_t sy, Float_t sz);
+ virtual void SetSigmaZ(Float_t sz) {fOsigma[2] = sz;}
+ virtual void SetMomentumRange(Float_t pmin=0, Float_t pmax=1.e10);
+ virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=1.e10);
+ virtual void SetPhiRange(Float_t phimin = 0., Float_t phimax = 360.);
+ virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100);
+ virtual void SetVRange(Float_t vxmin, Float_t vxmax,
+ Float_t vymin, Float_t vymax,
+ Float_t vzmin, Float_t vzmax);
+ virtual void SetNumberParticles(Int_t npart=100) {fNpart=npart;}
+ virtual Int_t NumberParticles() const {return fNpart;}
+ virtual void SetThetaRange(Float_t thetamin=0, Float_t thetamax=180);
+ virtual void Generate()=0;
+ virtual void SetParentWeight(Float_t wgt) {fParentWeight=wgt;}
+ virtual void SetChildWeight(Float_t wgt) {fChildWeight=wgt;}
+ virtual void SetAnalog(Int_t flag=1) {fAnalog=flag;}
+ virtual void SetVertexSmear(VertexSmear_t smear) {fVertexSmear = smear;}
+ virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
+ virtual void SetVertexSource(VertexSource_t source = kInternal) {fVertexSource = source;}
+ virtual void SetVertex(Float_t vx, Float_t vy, Float_t vz)
+ {fVertex[0] = vx; fVertex[1] = vy; fVertex[2] = vz;}
+ void SetVertexGenerator(AliVertexGenerator* vertexGenerator)
+ {fVertexGenerator = vertexGenerator; fVertexSource = kExternal; fVertexSmear = kPerEvent;}
+ void SetPileUpTimeWindow(Float_t pileUpTimeW) {fPileUpTimeWindow = pileUpTimeW;}
+
+ virtual void SetTrackingFlag(Int_t flag=1) {fTrackIt=flag;}
+ void Vertex();
+ void VertexExternal();
+ virtual void VertexInternal();
+ virtual void FinishRun();
+ virtual void SetMC(TGenerator *theMC) {fMCEvGen =theMC;}
+ virtual void AddHeader(AliGenEventHeader* /*header*/) {;}
+ virtual void SetContainer(AliGenerator* container) {fContainer = container;}
+
+ // Getters
+
+ virtual void GetOrigin(Float_t &ox, Float_t &oy, Float_t &oz) const
+ {ox=fOrigin.At(0);oy=fOrigin.At(1);oz=fOrigin.At(2);}
+ virtual void GetOrigin(TLorentzVector &o) const
+ {o[0]=fOrigin.At(0);o[1]=fOrigin.At(1);o[2]=fOrigin.At(2);o[3]=0;}
+ // Stack
+ void SetStack (AliStack *stack) {fStack = stack;}
+ AliStack* GetStack(){return fStack;}
+ // Collision Geometry
+ virtual Bool_t ProvidesCollisionGeometry() const {return kFALSE;}
+ virtual Bool_t NeedsCollisionGeometry() const {return kFALSE;}
+ virtual AliCollisionGeometry* CollisionGeometry() const {return fCollisionGeometry;}
+ virtual void SetCollisionGeometry(AliCollisionGeometry* geom) {fCollisionGeometry = geom;}
+
+ virtual Float_t GetEnergyCMS() const { return fEnergyCMS; }
+ virtual void SetEnergyCMS(Float_t energy = 0) { fEnergyCMS = energy; }
+ virtual void GetProjectile(TString& tar, Int_t& a, Int_t& z) const
+ {tar = fProjectile; a = fAProjectile; z = fZProjectile;}
+ virtual void GetTarget(TString& tar, Int_t& a, Int_t& z) const
+ {tar = fTarget; a = fATarget; z = fZTarget;}
+ virtual void SetProjectile(TString proj="", Int_t a = 0, Int_t z = 0)
+ {fProjectile = proj; fAProjectile = a; fZProjectile = z;}
+ virtual void SetTarget(TString tar="", Int_t a = 0, Int_t z = 0)
+ {fTarget = tar; fATarget = a; fZTarget = z;}
+
+ protected:
+ virtual void PushTrack(Int_t done, Int_t parent, Int_t pdg,
+ Float_t *pmom, Float_t *vpos, Float_t *polar,
+ Float_t tof, TMCProcess mech, Int_t &ntr,
+ Float_t weight = 1, Int_t is = 0);
+ virtual void PushTrack(Int_t done, Int_t parent, Int_t pdg,
+ Double_t px, Double_t py, Double_t pz, Double_t e,
+ Double_t vx, Double_t vy, Double_t vz, Double_t tof,
+ Double_t polx, Double_t poly, Double_t polz,
+ TMCProcess mech, Int_t &ntr, Float_t weight = 1, Int_t is = 0);
+ virtual void KeepTrack(Int_t itrack);
+ virtual void SetHighWaterMark(Int_t nt);
+
+ protected:
+ TGenerator* fMCEvGen; //!Pointer to the generator
Float_t fThetaMin; //Minimum theta of generation in radians
Float_t fThetaMax; //Maximum theta of generation in radians
Float_t fPhiMin; //Minimum phi of generation in radians
Int_t fNpart; //Maximum number of particles per event
Float_t fParentWeight; //Parent Weight
Float_t fChildWeight; //ChildWeight
- Int_t fTrackit; // Track the generated final state particle if 1
- Int_t fAnalog; //Flaf for anolog or pt-weighted generation
+ Int_t fAnalog; //Flag for anolog or pt-weighted generation
//
- VertexSmear_t fVertexSmear; //Vertex Smearing mode
- Int_t fTrackIt; // if 1 Track final state particles
- TArrayF fOrigin; //Origin of event
- TArrayF fOsigma; //Sigma of the Origin of event
+ VertexSmear_t fVertexSmear; //Vertex Smearing mode
+ VertexSource_t fVertexSource; //Vertex source (internal/external)
+ Float_t fCutVertexZ; //Vertex cut in units of sigma_z
+ Float_t fPileUpTimeWindow; //Time window for pile-up events
+ Int_t fTrackIt; // if 1, Track final state particles
+ AliVertexGenerator* fVertexGenerator; //! Generator for the vertex
+ TArrayF fOrigin; // Origin of event
+ TArrayF fOsigma; // Sigma of the Origin of event
+ TArrayF fVertex; //! Vertex of current event
- public:
- AliGenerator();
- AliGenerator(Int_t npart);
- virtual ~AliGenerator();
- virtual void Init();
- virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz)
- {fOrigin[0]=ox;fOrigin[1]=oy;fOrigin[2]=oz;}
- virtual void SetSigma(Float_t sx, Float_t sy, Float_t sz)
- {fOsigma[0]=sx;fOsigma[1]=sy;fOsigma[2]=sz;}
- virtual void SetMomentumRange(Float_t pmin=0, Float_t pmax=1.e10)
- {fPMin = pmin; fPMax = pmax;}
- virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=20.)
- {fPtMin = ptmin; fPtMax = ptmax;}
- virtual void SetPhiRange(Float_t phimin=-180., Float_t phimax=180)
- {fPhiMin = TMath::Pi()*phimin/180;
- fPhiMax = TMath::Pi()*phimax/180;}
- virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100)
- {fYMin=ymin; fYMax=ymax;}
- virtual void SetVRange(Float_t vxmin, Float_t vxmax,
- Float_t vymin, Float_t vymax,
- Float_t vzmin, Float_t vzmax)
- {
- fVMin[0]=vxmin; fVMin[1]=vymin; fVMin[2]=vzmin;
- fVMax[0]=vxmax; fVMax[1]=vymax; fVMax[2]=vzmax;
- }
- virtual void SetNumberParticles(Int_t npart=100) {fNpart=npart;}
- virtual Int_t NumberParticles() {return fNpart;}
- virtual void SetThetaRange(Float_t thetamin=0, Float_t thetamax=180)
- {fThetaMin = TMath::Pi()*thetamin/180;
- fThetaMax = TMath::Pi()*thetamax/180;}
- virtual void Generate()=0;
- virtual void SetParentWeight(Float_t wgt) {fParentWeight=wgt;}
- virtual void SetChildWeight(Float_t wgt) {fChildWeight=wgt;}
- virtual void SetAnalog(Int_t flag=1) {fAnalog=flag;}
- virtual void SetVertexSmear(VertexSmear_t smear) {fVertexSmear = smear;}
- virtual void SetTrackingFlag(Int_t flag=1) {fTrackIt=flag;}
-
- virtual void SetMC(TGenerator *theMC)
- {if (!fgMCEvGen) fgMCEvGen =theMC;}
- ClassDef(AliGenerator,1)
+ AliStack* fStack; //! Local pointer to stack
+ AliGenerator* fContainer; //! Local pointer to container
+
+ AliCollisionGeometry* fCollisionGeometry; //!Collision geometry
+ /*************************************************************************/
+ enum {kThetaRange = BIT(14),
+ kVertexRange = BIT(15),
+ kPhiRange = BIT(16),
+ kPtRange = BIT(17),
+ kYRange = BIT(18),
+ kMomentumRange = BIT(19)
+ };
+
+ Float_t fEnergyCMS; // Centre of mass energy
+ Int_t fAProjectile; // Projectile A
+ Int_t fZProjectile; // Projectile Z
+ Int_t fATarget; // Target A
+ Int_t fZTarget; // Target Z
+ TString fProjectile; // Projectile
+ TString fTarget; // Target
+
+ private:
+ AliGenerator(const AliGenerator &gen);
+ AliGenerator & operator=(const AliGenerator &gen);
+
+ ClassDef(AliGenerator,4) // Base class for event generators
};
#endif
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git://git.uio.no / u / mrichter / AliRoot.git / blobdiff