[u/mrichter/AliRoot.git] / PYTHIA6 / AliGenPythia.h

#ifndef ALIGENPYTHIA_H
#define ALIGENPYTHIA_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */


/* $Id$ */

//
// Generator using the TPythia interface (via AliPythia)
// to generate pp collisions.
// Using SetNuclei() also nuclear modifications to the structure functions
// can be taken into account. This makes, of course, only sense for the
// generation of the products of hard processes (heavy flavor, jets ...)
//
// andreas.morsch@cern.ch
//

#include "AliGenMC.h"
#include "AliPythia.h"

class AliPythia;
class TParticle;
class AliGenPythiaEventHeader;
class AliGenEventHeader;
class AliStack;
class AliRunLoader;

class AliGenPythia : public AliGenMC
{
 public:

    typedef enum {kFlavorSelection, kParentSelection} StackFillOpt_t;
    typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t;
    typedef enum {kCluster, kCell} JetRecMode_t;
	  
    AliGenPythia();
    AliGenPythia(Int_t npart);
    AliGenPythia(const AliGenPythia &Pythia);
    virtual ~AliGenPythia();
    virtual void    Generate();
    virtual void    Init();
    // set a cut on the Z coord. of the primary vertex (cm)
    //
    virtual void    SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
    // select process type
    virtual void    SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
    // select structure function
    virtual void    SetStrucFunc(StrucFunc_t func =  kCTEQ5L) {fStrucFunc = func;}
    // select pt of hard scattering 
    virtual void    SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
	{fPtHardMin = ptmin; fPtHardMax = ptmax; }
    virtual void    SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
	{fYHardMin = ymin; fYHardMax = ymax; }
    // Set initial and final state gluon radiation
    virtual void    SetGluonRadiation(Int_t iIn, Int_t iFin)
	{fGinit = iIn; fGfinal = iFin;}
    virtual void    SetPtKick(Float_t kt = 1.)
	{fPtKick = kt;}
    // Use the Pythia 6.3 new multiple interations scenario
    virtual void    UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;}
    // Switch off heavy flavors
    virtual void    SwitchHFOff() {fHFoff = kTRUE;}
    // set centre of mass energy
    virtual void    SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
    // treat protons as inside nuclei
    virtual void    SetNuclei(Int_t a1, Int_t a2);
    virtual void    SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
	{fEtMinJet = etmin; fEtMaxJet = etmax;}
    virtual void    SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
    virtual void    SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
    virtual void    SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	{fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
    virtual void    SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	{fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
    virtual void    SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	{fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}

    // Trigger on a particle
    virtual void    SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9) 
	{fTriggerParticle = particle; fTriggerEta = etamax;}
    // Set option for feed down from higher family
    virtual void SetFeedDownHigherFamily(Bool_t opt) {
      fFeedDownOpt = opt;
    }
    // Set option for selecting particles kept in stack according to flavor
    // or to parent selection
    virtual void SetStackFillOpt(StackFillOpt_t opt) {
      fStackFillOpt = opt;
    }
    // Set fragmentation option
    virtual void SetFragmentation(Bool_t opt) {
      fFragmentation = opt;
    }
    // Set counting mode
    virtual void SetCountMode(CountMode_t mode) {
      fCountMode = mode;
    }
    // Set quenching mode 0 = no, 1 = AM, 2 = IL
    virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
    virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
    virtual void SetReadFromFile(const Text_t *filname) {fFileName = filname;  fReadFromFile = 1;}    
    // Get interaction rate for pileup studies
    virtual void    SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
    virtual Float_t GetInteractionRate() const {return fInteractionRate;}
    // get cross section of process
    virtual Float_t GetXsection() const {return fXsection;}
    // get triggered jets
    void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
    void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
    void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
			     Float_t thresh = 0., Float_t etseed = 4.,
			     Float_t minet = 10., Float_t r = 1.);
    
    void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
    // Getters
    virtual Process_t    GetProcess() const {return fProcess;}
    virtual StrucFunc_t  GetStrucFunc() const {return fStrucFunc;}
    virtual void         GetPtHard(Float_t& ptmin, Float_t& ptmax) const
	{ptmin = fPtHardMin; ptmax = fPtHardMax;}
    virtual Float_t      GetEnergyCMS() const {return fEnergyCMS;}
    virtual void         GetNuclei(Int_t&  a1, Int_t& a2) const
	{a1 = fAProjectile; a2 = fATarget;}
    virtual void         GetJetEtRange(Float_t& etamin, Float_t& etamax) const
	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
    virtual void         GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
	{phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180/TMath::Pi();}
    virtual void         GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
	{etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
    virtual void         GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
	{phimin = fPhiMinGamma*180./TMath::Pi(); phimax = fPhiMaxGamma*180./TMath::Pi();}
    //
    virtual void FinishRun();
    Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);

    //Used in some processes to selected child properties
    Bool_t CheckKinematicsOnChild();
    

    // Assignment Operator
    AliGenPythia & operator=(const AliGenPythia & rhs);
    void     GetSubEventTime();
    void     AddHeader(AliGenEventHeader* header);
    
 protected:
    // adjust the weight from kinematic cuts
    void     AdjustWeights() const;
    Int_t    GenerateMB();
    void     MakeHeader();    
    void     GeneratePileup();
    Process_t   fProcess;           //Process type
    StrucFunc_t fStrucFunc;         //Structure Function
    Float_t     fEnergyCMS;         //Centre of mass energy
    Float_t     fKineBias;          //!Bias from kinematic selection
    Int_t       fTrials;            //!Number of trials for current event
    Int_t       fTrialsRun;         //!Number of trials for run
    Float_t     fQ;                 //Mean Q
    Float_t     fX1;                //Mean x1
    Float_t     fX2;                //Mean x2
    Float_t     fEventTime;         //Time of the subevent
    Float_t     fInteractionRate;   //Interaction rate (set by user)
    Float_t     fTimeWindow;        //Time window for pileup events (set by user)
    Int_t       fCurSubEvent;       //Index of the current sub-event
    TArrayF     *fEventsTime;       //Subevents time for pileup
    Int_t       fNev;               //Number of events 
    Int_t       fFlavorSelect;      //Heavy Flavor Selection
    Float_t     fXsection;          //Cross-section
    AliPythia   *fPythia;           //!Pythia 
    Float_t     fPtHardMin;         //lower pT-hard cut 
    Float_t     fPtHardMax;         //higher pT-hard cut
    Float_t     fYHardMin;          //lower  y-hard cut 
    Float_t     fYHardMax;          //higher y-hard cut
    Int_t       fGinit;             //initial state gluon radiation
    Int_t       fGfinal;            //final state gluon radiation
    Int_t       fHadronisation;     //hadronisation
    Int_t       fNpartons;          //Number of partons before hadronisation
    Int_t       fReadFromFile;      //read partons from file
    Int_t       fQuench;            //Flag for quenching
    Float_t     fPtKick;            //Transverse momentum kick
    Bool_t      fFullEvent;         //!Write Full event if true
    AliDecayer  *fDecayer;          //!Pointer to the decayer instance
    Int_t       fDebugEventFirst;   //!First event to debug
    Int_t       fDebugEventLast;    //!Last  event to debug
    Float_t     fEtMinJet;          //Minimum et of triggered Jet
    Float_t     fEtMaxJet;          //Maximum et of triggered Jet
    Float_t     fEtaMinJet;         //Minimum eta of triggered Jet
    Float_t     fEtaMaxJet;         //Maximum eta of triggered Jet
    Float_t     fPhiMinJet;         //Minimum phi of triggered Jet
    Float_t     fPhiMaxJet;         //Maximum phi of triggered Jet
    Int_t       fJetReconstruction; //Jet Reconstruction mode 
    Float_t     fEtaMinGamma;       // Minimum eta of triggered gamma
    Float_t     fEtaMaxGamma;       // Maximum eta of triggered gamma
    Float_t     fPhiMinGamma;       // Minimum phi of triggered gamma
    Float_t     fPhiMaxGamma;       // Maximum phi of triggered gamma
    Float_t     fPycellEtaMax;      // Max. eta for Pycell 
    Int_t       fPycellNEta;        // Number of eta bins for Pycell 
    Int_t       fPycellNPhi;        // Number of phi bins for Pycell
    Float_t	fPycellThreshold;   // Pycell threshold
    Float_t 	fPycellEtSeed;      // Pycell seed
    Float_t	fPycellMinEtJet;    // Pycell min. jet et
    Float_t	fPycellMaxRadius;   // Pycell cone radius
    StackFillOpt_t fStackFillOpt;   // Stack filling with all particles with
                                    // that flavour or only with selected
                                    // parents and their decays
    Bool_t fFeedDownOpt;            // Option to set feed down from higher
                                    // quark families (e.g. b->c)
    Bool_t  fFragmentation;          // Option to activate fragmentation by Pythia
    Bool_t  fSetNuclei;              // Flag indicating that SetNuclei has been called
    Bool_t  fNewMIS;                 // Flag for the new multipple interactions scenario
    Bool_t  fHFoff;                  // Flag for switching heafy flavor production off
    Int_t   fTriggerParticle;        // Trigger on this particle ...
    Float_t fTriggerEta;             // .. within |eta| < fTriggerEta
    //
    CountMode_t fCountMode;            // Options for counting when the event will be finished.
    AliGenPythiaEventHeader* fHeader;  //! Event header
    AliRunLoader*            fRL;      //! Run Loader
    const Text_t* fFileName;           //! Name of file to read from
     
    // fCountMode = kCountAll         --> All particles that end up in the
    //                                    stack are counted
    // fCountMode = kCountParents     --> Only selected parents are counted
    // fCountMode = kCountTrackabless --> Only particles flagged for tracking
    //                                     are counted
    //
    ClassDef(AliGenPythia,5) // AliGenerator interface to Pythia
};
#endif
Commit	Line	Data
8d2cd130	1	#ifndef ALIGENPYTHIA_H
	2	#define ALIGENPYTHIA_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
cf57b268	6
8d2cd130	7	/* $Id$ */
	8
	9	//
	10	// Generator using the TPythia interface (via AliPythia)
	11	// to generate pp collisions.
	12	// Using SetNuclei() also nuclear modifications to the structure functions
	13	// can be taken into account. This makes, of course, only sense for the
	14	// generation of the products of hard processes (heavy flavor, jets ...)
	15	//
	16	// andreas.morsch@cern.ch
	17	//
	18
	19	#include "AliGenMC.h"
	20	#include "AliPythia.h"
	21
	22	class AliPythia;
	23	class TParticle;
e5c87a3d	24	class AliGenPythiaEventHeader;
cf57b268	25	class AliGenEventHeader;
32d6ef7d	26	class AliStack;
5fa4b20b	27	class AliRunLoader;
5fa4b20b	28
8d2cd130	29	class AliGenPythia : public AliGenMC
	30	{
	31	public:
	32
	33	typedef enum {kFlavorSelection, kParentSelection} StackFillOpt_t;
	34	typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t;
	35	typedef enum {kCluster, kCell} JetRecMode_t;
	36
	37	AliGenPythia();
	38	AliGenPythia(Int_t npart);
	39	AliGenPythia(const AliGenPythia &Pythia);
	40	virtual ~AliGenPythia();
	41	virtual void Generate();
	42	virtual void Init();
	43	// set a cut on the Z coord. of the primary vertex (cm)
	44	//
	45	virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
	46	// select process type
	47	virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
	48	// select structure function
fa49ba58	49	virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;}
8d2cd130	50	// select pt of hard scattering
	51	virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
	52	{fPtHardMin = ptmin; fPtHardMax = ptmax; }
	53	virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
	54	{fYHardMin = ymin; fYHardMax = ymax; }
	55	// Set initial and final state gluon radiation
	56	virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
	57	{fGinit = iIn; fGfinal = iFin;}
	58	virtual void SetPtKick(Float_t kt = 1.)
	59	{fPtKick = kt;}
beac474c	60	// Use the Pythia 6.3 new multiple interations scenario
	61	virtual void UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;}
	62	// Switch off heavy flavors
	63	virtual void SwitchHFOff() {fHFoff = kTRUE;}
8d2cd130	64	// set centre of mass energy
	65	virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
	66	// treat protons as inside nuclei
	67	virtual void SetNuclei(Int_t a1, Int_t a2);
	68	virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
	69	{fEtMinJet = etmin; fEtMaxJet = etmax;}
	70	virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	71	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
	72	virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
	73	virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	74	{fPhiMinJet = TMath::Pi()phimin/180.; fPhiMaxJet = TMath::Pi()phimax/180.;}
	75	virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	76	{fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
	77	virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	78	{fPhiMinGamma = TMath::Pi()phimin/180.; fPhiMaxGamma = TMath::Pi()phimax/180.;}
7ce1321b	79
	80	// Trigger on a particle
	81	virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9)
	82	{fTriggerParticle = particle; fTriggerEta = etamax;}
8d2cd130	83	// Set option for feed down from higher family
	84	virtual void SetFeedDownHigherFamily(Bool_t opt) {
	85	fFeedDownOpt = opt;
	86	}
	87	// Set option for selecting particles kept in stack according to flavor
	88	// or to parent selection
	89	virtual void SetStackFillOpt(StackFillOpt_t opt) {
	90	fStackFillOpt = opt;
	91	}
	92	// Set fragmentation option
c125238c	93	virtual void SetFragmentation(Bool_t opt) {
8d2cd130	94	fFragmentation = opt;
	95	}
	96	// Set counting mode
c125238c	97	virtual void SetCountMode(CountMode_t mode) {
8d2cd130	98	fCountMode = mode;
8d2cd130	99	}
b6bbf811	100	// Set quenching mode 0 = no, 1 = AM, 2 = IL
7ea3ea5b	101	virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
5fa4b20b	102	virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
5fa4b20b	103	virtual void SetReadFromFile(const Text_t *filname) {fFileName = filname; fReadFromFile = 1;}
9d7108a7	104	// Get interaction rate for pileup studies
	105	virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
	106	virtual Float_t GetInteractionRate() const {return fInteractionRate;}
8d2cd130	107	// get cross section of process
	108	virtual Float_t GetXsection() const {return fXsection;}
	109	// get triggered jets
7184e472	110	void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
014a9521	111	void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
592f8307	112	void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
	113	Float_t thresh = 0., Float_t etseed = 4.,
	114	Float_t minet = 10., Float_t r = 1.);
	115
5fa4b20b	116	void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
8d2cd130	117	// Getters
7184e472	118	virtual Process_t GetProcess() const {return fProcess;}
	119	virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;}
	120	virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const
35346e8d	121	{ptmin = fPtHardMin; ptmax = fPtHardMax;}
7184e472	122	virtual Float_t GetEnergyCMS() const {return fEnergyCMS;}
7184e472	123	virtual void GetNuclei(Int_t& a1, Int_t& a2) const
1a626d4e	124	{a1 = fAProjectile; a2 = fATarget;}
7184e472	125	virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	126	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
7184e472	127	virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	128	{phimin = fPhiMinJet180./TMath::Pi(); phimax = fPhiMaxJet180/TMath::Pi();}
7184e472	129	virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	130	{etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
7184e472	131	virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	132	{phimin = fPhiMinGamma180./TMath::Pi(); phimax = fPhiMaxGamma180./TMath::Pi();}
	133	//
	134	virtual void FinishRun();
	135	Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);
aea21c57	136
0f6ee828	137	//Used in some processes to selected child properties
aea21c57	138	Bool_t CheckKinematicsOnChild();
8d2cd130	139
aea21c57	140
8d2cd130	141	// Assignment Operator
8d2cd130	142	AliGenPythia & operator=(const AliGenPythia & rhs);
9d7108a7	143	void GetSubEventTime();
cf57b268	144	void AddHeader(AliGenEventHeader* header);
cf57b268	145
8d2cd130	146	protected:
8d2cd130	147	// adjust the weight from kinematic cuts
7184e472	148	void AdjustWeights() const;
f913ec4f	149	Int_t GenerateMB();
f913ec4f	150	void MakeHeader();
9d7108a7	151	void GeneratePileup();
8d2cd130	152	Process_t fProcess; //Process type
	153	StrucFunc_t fStrucFunc; //Structure Function
	154	Float_t fEnergyCMS; //Centre of mass energy
	155	Float_t fKineBias; //!Bias from kinematic selection
	156	Int_t fTrials; //!Number of trials for current event
	157	Int_t fTrialsRun; //!Number of trials for run
	158	Float_t fQ; //Mean Q
	159	Float_t fX1; //Mean x1
	160	Float_t fX2; //Mean x2
f913ec4f	161	Float_t fEventTime; //Time of the subevent
f913ec4f	162	Float_t fInteractionRate; //Interaction rate (set by user)
9d7108a7	163	Float_t fTimeWindow; //Time window for pileup events (set by user)
	164	Int_t fCurSubEvent; //Index of the current sub-event
	165	TArrayF *fEventsTime; //Subevents time for pileup
8d2cd130	166	Int_t fNev; //Number of events
	167	Int_t fFlavorSelect; //Heavy Flavor Selection
	168	Float_t fXsection; //Cross-section
	169	AliPythia *fPythia; //!Pythia
	170	Float_t fPtHardMin; //lower pT-hard cut
	171	Float_t fPtHardMax; //higher pT-hard cut
	172	Float_t fYHardMin; //lower y-hard cut
	173	Float_t fYHardMax; //higher y-hard cut
8d2cd130	174	Int_t fGinit; //initial state gluon radiation
8d2cd130	175	Int_t fGfinal; //final state gluon radiation
5fa4b20b	176	Int_t fHadronisation; //hadronisation
	177	Int_t fNpartons; //Number of partons before hadronisation
	178	Int_t fReadFromFile; //read partons from file
7ea3ea5b	179	Int_t fQuench; //Flag for quenching
8d2cd130	180	Float_t fPtKick; //Transverse momentum kick
	181	Bool_t fFullEvent; //!Write Full event if true
	182	AliDecayer *fDecayer; //!Pointer to the decayer instance
	183	Int_t fDebugEventFirst; //!First event to debug
	184	Int_t fDebugEventLast; //!Last event to debug
	185	Float_t fEtMinJet; //Minimum et of triggered Jet
	186	Float_t fEtMaxJet; //Maximum et of triggered Jet
	187	Float_t fEtaMinJet; //Minimum eta of triggered Jet
	188	Float_t fEtaMaxJet; //Maximum eta of triggered Jet
	189	Float_t fPhiMinJet; //Minimum phi of triggered Jet
	190	Float_t fPhiMaxJet; //Maximum phi of triggered Jet
	191	Int_t fJetReconstruction; //Jet Reconstruction mode
	192	Float_t fEtaMinGamma; // Minimum eta of triggered gamma
	193	Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
	194	Float_t fPhiMinGamma; // Minimum phi of triggered gamma
	195	Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
592f8307	196	Float_t fPycellEtaMax; // Max. eta for Pycell
	197	Int_t fPycellNEta; // Number of eta bins for Pycell
	198	Int_t fPycellNPhi; // Number of phi bins for Pycell
	199	Float_t fPycellThreshold; // Pycell threshold
	200	Float_t fPycellEtSeed; // Pycell seed
	201	Float_t fPycellMinEtJet; // Pycell min. jet et
	202	Float_t fPycellMaxRadius; // Pycell cone radius
8d2cd130	203	StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
	204	// that flavour or only with selected
	205	// parents and their decays
	206	Bool_t fFeedDownOpt; // Option to set feed down from higher
	207	// quark families (e.g. b->c)
7ce1321b	208	Bool_t fFragmentation; // Option to activate fragmentation by Pythia
	209	Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
	210	Bool_t fNewMIS; // Flag for the new multipple interactions scenario
	211	Bool_t fHFoff; // Flag for switching heafy flavor production off
	212	Int_t fTriggerParticle; // Trigger on this particle ...
	213	Float_t fTriggerEta; // .. within \|eta\| < fTriggerEta
8d2cd130	214	//
5fa4b20b	215	CountMode_t fCountMode; // Options for counting when the event will be finished.
	216	AliGenPythiaEventHeader* fHeader; //! Event header
	217	AliRunLoader* fRL; //! Run Loader
2bcdbef3	218	const Text_t* fFileName; //! Name of file to read from
e5c87a3d	219
8d2cd130	220	// fCountMode = kCountAll --> All particles that end up in the
	221	// stack are counted
	222	// fCountMode = kCountParents --> Only selected parents are counted
	223	// fCountMode = kCountTrackabless --> Only particles flagged for tracking
	224	// are counted
	225	//
e5c87a3d	226	ClassDef(AliGenPythia,5) // AliGenerator interface to Pythia
8d2cd130	227	};
	228	#endif
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