[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);
    virtual ~AliGenPythia();
    virtual void    Generate();
    virtual void    Init();
    // Range of events to be printed
    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; }
    // y of hard scattering
    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;}
    // Intrinsic kT
    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 with mass numbers a1 and a2
    virtual void    SetNuclei(Int_t a1, Int_t a2);
    //
    // Trigger options
    //
    // Energy range for jet trigger
    virtual void    SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
	{fEtMinJet = etmin; fEtMaxJet = etmax;}
    // Eta range for jet trigger
    virtual void    SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
    // Phi range for jet trigger
    virtual void    SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	{fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
    // Jet reconstruction mode; default is cone algorithm
    virtual void    SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
    // Eta range for gamma trigger 
    virtual void    SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	{fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
    // Phi range for gamma trigger
    virtual void    SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
	{fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}
   // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL
    virtual void  SetFragPhotonInCalo(Bool_t b)  {fFragPhotonInCalo = b;}
    virtual void  SetPi0InCalo       (Bool_t b)  {fPi0InCalo    = b;}
    virtual void  SetPhotonInCalo(Bool_t b)      {fPhotonInCalo = b;}
    virtual void  SetCheckPHOS (Bool_t b)        {fCheckPHOS    = b;}
    virtual void  SetCheckEMCAL(Bool_t b)        {fCheckEMCAL   = b;}
    virtual void  SetFragPhotonInEMCAL(Bool_t b) {fCheckEMCAL   = b; fFragPhotonInCalo = b;}
    virtual void  SetFragPhotonInPHOS(Bool_t b)  {fCheckPHOS    = b; fFragPhotonInCalo = b;}
    virtual void  SetPi0InEMCAL(Bool_t b)        {fCheckEMCAL   = b; fPi0InCalo        = b;}
    virtual void  SetPi0InPHOS(Bool_t b)         {fCheckPHOS    = b; fPi0InCalo        = b;}
    virtual void  SetPhotonInEMCAL(Bool_t b)     {fCheckEMCAL   = b; fPhotonInCalo     = b;}
    virtual void  SetPhotonInPHOS(Bool_t b)      {fCheckPHOS    = b; fPhotonInCalo     = b;}
    virtual void  SetPhotonInPHOSeta(Bool_t b)   {fCheckPHOSeta = b; fPhotonInCalo     = b;}
    virtual void  SetFragPhotonOrPi0MinPt(Float_t pt)      {fFragPhotonOrPi0MinPt = pt;}
    virtual void  SetPhotonMinPt(Float_t pt)     {fPhotonMinPt = pt;}
    // Trigger and rotate event 
    void RotatePhi(Int_t iphcand, Bool_t& okdd);
    // Trigger on a single particle
    virtual void    SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9) 
	{fTriggerParticle = particle; fTriggerEta = etamax;}
    //
    // Heavy flavor options
    //
    // 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;
    }
    //
    // Quenching
    //
    // 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;}    

    //
    // Pile-up
    //
    // 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();}
    //
    Bool_t IsInEMCAL(Float_t phi, Float_t eta);
    Bool_t IsInPHOS(Float_t phi, Float_t eta);
    //
    virtual void FinishRun();
    Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);
    //Used in some processes to selected child properties
    Bool_t CheckKinematicsOnChild();
    void     GetSubEventTime();

 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.     
    // 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
    //
    //

    AliGenPythiaEventHeader* fHeader;  //! Event header
    AliRunLoader*            fRL;      //! Run Loader
    const Text_t* fFileName;           //! Name of file to read from


    Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
    Bool_t fPi0InCalo;        // Option to ask for Pi0 in calorimeters acceptance
    Bool_t fPhotonInCalo;     // Option to ask for Decay Photon in calorimeter acceptance
    Bool_t fCheckEMCAL;       // Option to ask for FragPhoton or Pi0 in calorimeters EMCAL acceptance
    Bool_t fCheckPHOS;        // Option to ask for FragPhoton or Pi0 in calorimeters PHOS acceptance
    Bool_t fCheckPHOSeta;     // Option to ask for PHOS eta acceptance
    Float_t fFragPhotonOrPi0MinPt; // Minimum momentum of Fragmentation Photon or Pi0
    Float_t fPhotonMinPt;          // Minimum momentum of Photon 
    //Calorimeters eta-phi acceptance 
    Float_t fPHOSMinPhi;           // Minimum phi PHOS
    Float_t fPHOSMaxPhi;           // Maximum phi PHOS
    Float_t fPHOSEta;              // Minimum eta PHOS
    Float_t fEMCALMinPhi;          // Minimum phi EMCAL
    Float_t fEMCALMaxPhi;          // Maximum phi EMCAL
    Float_t fEMCALEta;             // Maximum eta EMCAL

 private:
    AliGenPythia(const AliGenPythia &Pythia);
    AliGenPythia & operator=(const AliGenPythia & rhs);

    ClassDef(AliGenPythia,6) // 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);
8d2cd130	39	virtual ~AliGenPythia();
	40	virtual void Generate();
	41	virtual void Init();
90a236ce	42	// Range of events to be printed
8d2cd130	43	virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
90a236ce	44	// Select process type
8d2cd130	45	virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
90a236ce	46	// Select structure function
fa49ba58	47	virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;}
90a236ce	48	// Select pt of hard scattering
8d2cd130	49	virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
8d2cd130	50	{fPtHardMin = ptmin; fPtHardMax = ptmax; }
90a236ce	51	// y of hard scattering
8d2cd130	52	virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
	53	{fYHardMin = ymin; fYHardMax = ymax; }
	54	// Set initial and final state gluon radiation
	55	virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
	56	{fGinit = iIn; fGfinal = iFin;}
90a236ce	57	// Intrinsic kT
8d2cd130	58	virtual void SetPtKick(Float_t kt = 1.)
8d2cd130	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;}
90a236ce	64	// Set centre of mass energy
8d2cd130	65	virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
90a236ce	66	// Treat protons as inside nuclei with mass numbers a1 and a2
8d2cd130	67	virtual void SetNuclei(Int_t a1, Int_t a2);
90a236ce	68	//
	69	// Trigger options
	70	//
	71	// Energy range for jet trigger
8d2cd130	72	virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
8d2cd130	73	{fEtMinJet = etmin; fEtMaxJet = etmax;}
90a236ce	74	// Eta range for jet trigger
8d2cd130	75	virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
8d2cd130	76	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
90a236ce	77	// Phi range for jet trigger
8d2cd130	78	virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
8d2cd130	79	{fPhiMinJet = TMath::Pi()phimin/180.; fPhiMaxJet = TMath::Pi()phimax/180.;}
90a236ce	80	// Jet reconstruction mode; default is cone algorithm
	81	virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
	82	// Eta range for gamma trigger
8d2cd130	83	virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
8d2cd130	84	{fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
90a236ce	85	// Phi range for gamma trigger
8d2cd130	86	virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
8d2cd130	87	{fPhiMinGamma = TMath::Pi()phimin/180.; fPhiMaxGamma = TMath::Pi()phimax/180.;}
9fd8e520	88	// Select jets with fragmentation photon or pi0 going to PHOS or EMCAL
90a236ce	89	virtual void SetFragPhotonInCalo(Bool_t b) {fFragPhotonInCalo = b;}
	90	virtual void SetPi0InCalo (Bool_t b) {fPi0InCalo = b;}
	91	virtual void SetPhotonInCalo(Bool_t b) {fPhotonInCalo = b;}
	92	virtual void SetCheckPHOS (Bool_t b) {fCheckPHOS = b;}
	93	virtual void SetCheckEMCAL(Bool_t b) {fCheckEMCAL = b;}
	94	virtual void SetFragPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fFragPhotonInCalo = b;}
	95	virtual void SetFragPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fFragPhotonInCalo = b;}
	96	virtual void SetPi0InEMCAL(Bool_t b) {fCheckEMCAL = b; fPi0InCalo = b;}
	97	virtual void SetPi0InPHOS(Bool_t b) {fCheckPHOS = b; fPi0InCalo = b;}
	98	virtual void SetPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fPhotonInCalo = b;}
	99	virtual void SetPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fPhotonInCalo = b;}
	100	virtual void SetPhotonInPHOSeta(Bool_t b) {fCheckPHOSeta = b; fPhotonInCalo = b;}
	101	virtual void SetFragPhotonOrPi0MinPt(Float_t pt) {fFragPhotonOrPi0MinPt = pt;}
	102	virtual void SetPhotonMinPt(Float_t pt) {fPhotonMinPt = pt;}
	103	// Trigger and rotate event
	104	void RotatePhi(Int_t iphcand, Bool_t& okdd);
	105	// Trigger on a single particle
7ce1321b	106	virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9)
7ce1321b	107	{fTriggerParticle = particle; fTriggerEta = etamax;}
90a236ce	108	//
	109	// Heavy flavor options
	110	//
8d2cd130	111	// Set option for feed down from higher family
8d2cd130	112	virtual void SetFeedDownHigherFamily(Bool_t opt) {
90a236ce	113	fFeedDownOpt = opt;
8d2cd130	114	}
	115	// Set option for selecting particles kept in stack according to flavor
	116	// or to parent selection
	117	virtual void SetStackFillOpt(StackFillOpt_t opt) {
90a236ce	118	fStackFillOpt = opt;
8d2cd130	119	}
8d2cd130	120	// Set fragmentation option
c125238c	121	virtual void SetFragmentation(Bool_t opt) {
90a236ce	122	fFragmentation = opt;
8d2cd130	123	}
8d2cd130	124	// Set counting mode
c125238c	125	virtual void SetCountMode(CountMode_t mode) {
90a236ce	126	fCountMode = mode;
8d2cd130	127	}
90a236ce	128	//
	129	// Quenching
	130	//
b6bbf811	131	// Set quenching mode 0 = no, 1 = AM, 2 = IL
7ea3ea5b	132	virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
5fa4b20b	133	virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
5fa4b20b	134	virtual void SetReadFromFile(const Text_t *filname) {fFileName = filname; fReadFromFile = 1;}
90a236ce	135
	136	//
	137	// Pile-up
	138	//
	139	// Get interaction rate for pileup studies
9d7108a7	140	virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
9d7108a7	141	virtual Float_t GetInteractionRate() const {return fInteractionRate;}
8d2cd130	142	// get cross section of process
	143	virtual Float_t GetXsection() const {return fXsection;}
	144	// get triggered jets
7184e472	145	void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
014a9521	146	void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
592f8307	147	void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
	148	Float_t thresh = 0., Float_t etseed = 4.,
	149	Float_t minet = 10., Float_t r = 1.);
	150
5fa4b20b	151	void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
8d2cd130	152	// Getters
7184e472	153	virtual Process_t GetProcess() const {return fProcess;}
	154	virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;}
	155	virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const
35346e8d	156	{ptmin = fPtHardMin; ptmax = fPtHardMax;}
7184e472	157	virtual Float_t GetEnergyCMS() const {return fEnergyCMS;}
7184e472	158	virtual void GetNuclei(Int_t& a1, Int_t& a2) const
1a626d4e	159	{a1 = fAProjectile; a2 = fATarget;}
7184e472	160	virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	161	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
7184e472	162	virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	163	{phimin = fPhiMinJet180./TMath::Pi(); phimax = fPhiMaxJet180/TMath::Pi();}
7184e472	164	virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	165	{etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
7184e472	166	virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	167	{phimin = fPhiMinGamma180./TMath::Pi(); phimax = fPhiMaxGamma180./TMath::Pi();}
8d2cd130	168	//
ec2c406e	169	Bool_t IsInEMCAL(Float_t phi, Float_t eta);
	170	Bool_t IsInPHOS(Float_t phi, Float_t eta);
	171	//
8d2cd130	172	virtual void FinishRun();
8d2cd130	173	Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);
0f6ee828	174	//Used in some processes to selected child properties
aea21c57	175	Bool_t CheckKinematicsOnChild();
9d7108a7	176	void GetSubEventTime();
dbd64db6	177
8d2cd130	178	protected:
8d2cd130	179	// adjust the weight from kinematic cuts
7184e472	180	void AdjustWeights() const;
f913ec4f	181	Int_t GenerateMB();
f913ec4f	182	void MakeHeader();
9d7108a7	183	void GeneratePileup();
8d2cd130	184	Process_t fProcess; //Process type
	185	StrucFunc_t fStrucFunc; //Structure Function
	186	Float_t fEnergyCMS; //Centre of mass energy
	187	Float_t fKineBias; //!Bias from kinematic selection
	188	Int_t fTrials; //!Number of trials for current event
	189	Int_t fTrialsRun; //!Number of trials for run
	190	Float_t fQ; //Mean Q
	191	Float_t fX1; //Mean x1
	192	Float_t fX2; //Mean x2
f913ec4f	193	Float_t fEventTime; //Time of the subevent
f913ec4f	194	Float_t fInteractionRate; //Interaction rate (set by user)
9d7108a7	195	Float_t fTimeWindow; //Time window for pileup events (set by user)
	196	Int_t fCurSubEvent; //Index of the current sub-event
	197	TArrayF *fEventsTime; //Subevents time for pileup
8d2cd130	198	Int_t fNev; //Number of events
	199	Int_t fFlavorSelect; //Heavy Flavor Selection
	200	Float_t fXsection; //Cross-section
	201	AliPythia *fPythia; //!Pythia
	202	Float_t fPtHardMin; //lower pT-hard cut
	203	Float_t fPtHardMax; //higher pT-hard cut
	204	Float_t fYHardMin; //lower y-hard cut
	205	Float_t fYHardMax; //higher y-hard cut
8d2cd130	206	Int_t fGinit; //initial state gluon radiation
8d2cd130	207	Int_t fGfinal; //final state gluon radiation
5fa4b20b	208	Int_t fHadronisation; //hadronisation
	209	Int_t fNpartons; //Number of partons before hadronisation
	210	Int_t fReadFromFile; //read partons from file
7ea3ea5b	211	Int_t fQuench; //Flag for quenching
8d2cd130	212	Float_t fPtKick; //Transverse momentum kick
	213	Bool_t fFullEvent; //!Write Full event if true
	214	AliDecayer *fDecayer; //!Pointer to the decayer instance
	215	Int_t fDebugEventFirst; //!First event to debug
	216	Int_t fDebugEventLast; //!Last event to debug
	217	Float_t fEtMinJet; //Minimum et of triggered Jet
	218	Float_t fEtMaxJet; //Maximum et of triggered Jet
	219	Float_t fEtaMinJet; //Minimum eta of triggered Jet
	220	Float_t fEtaMaxJet; //Maximum eta of triggered Jet
	221	Float_t fPhiMinJet; //Minimum phi of triggered Jet
	222	Float_t fPhiMaxJet; //Maximum phi of triggered Jet
	223	Int_t fJetReconstruction; //Jet Reconstruction mode
	224	Float_t fEtaMinGamma; // Minimum eta of triggered gamma
	225	Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
	226	Float_t fPhiMinGamma; // Minimum phi of triggered gamma
	227	Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
592f8307	228	Float_t fPycellEtaMax; // Max. eta for Pycell
	229	Int_t fPycellNEta; // Number of eta bins for Pycell
	230	Int_t fPycellNPhi; // Number of phi bins for Pycell
	231	Float_t fPycellThreshold; // Pycell threshold
	232	Float_t fPycellEtSeed; // Pycell seed
	233	Float_t fPycellMinEtJet; // Pycell min. jet et
	234	Float_t fPycellMaxRadius; // Pycell cone radius
8d2cd130	235	StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
	236	// that flavour or only with selected
	237	// parents and their decays
	238	Bool_t fFeedDownOpt; // Option to set feed down from higher
	239	// quark families (e.g. b->c)
90a236ce	240	Bool_t fFragmentation; // Option to activate fragmentation by Pythia
	241	Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
	242	Bool_t fNewMIS; // Flag for the new multipple interactions scenario
	243	Bool_t fHFoff; // Flag for switching heafy flavor production off
	244	Int_t fTriggerParticle; // Trigger on this particle ...
	245	Float_t fTriggerEta; // .. within \|eta\| < fTriggerEta
	246	CountMode_t fCountMode; // Options for counting when the event will be finished.
8d2cd130	247	// fCountMode = kCountAll --> All particles that end up in the
	248	// stack are counted
	249	// fCountMode = kCountParents --> Only selected parents are counted
	250	// fCountMode = kCountTrackabless --> Only particles flagged for tracking
	251	// are counted
	252	//
90a236ce	253	//
	254
	255	AliGenPythiaEventHeader* fHeader; //! Event header
	256	AliRunLoader* fRL; //! Run Loader
	257	const Text_t* fFileName; //! Name of file to read from
	258
ec2c406e	259
90a236ce	260	Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
	261	Bool_t fPi0InCalo; // Option to ask for Pi0 in calorimeters acceptance
	262	Bool_t fPhotonInCalo; // Option to ask for Decay Photon in calorimeter acceptance
	263	Bool_t fCheckEMCAL; // Option to ask for FragPhoton or Pi0 in calorimeters EMCAL acceptance
	264	Bool_t fCheckPHOS; // Option to ask for FragPhoton or Pi0 in calorimeters PHOS acceptance
	265	Bool_t fCheckPHOSeta; // Option to ask for PHOS eta acceptance
	266	Float_t fFragPhotonOrPi0MinPt; // Minimum momentum of Fragmentation Photon or Pi0
	267	Float_t fPhotonMinPt; // Minimum momentum of Photon
ec2c406e	268	//Calorimeters eta-phi acceptance
90a236ce	269	Float_t fPHOSMinPhi; // Minimum phi PHOS
	270	Float_t fPHOSMaxPhi; // Maximum phi PHOS
	271	Float_t fPHOSEta; // Minimum eta PHOS
	272	Float_t fEMCALMinPhi; // Minimum phi EMCAL
	273	Float_t fEMCALMaxPhi; // Maximum phi EMCAL
	274	Float_t fEMCALEta; // Maximum eta EMCAL
ec2c406e	275
93a2041b	276	private:
	277	AliGenPythia(const AliGenPythia &Pythia);
	278	AliGenPythia & operator=(const AliGenPythia & rhs);
	279
90a236ce	280	ClassDef(AliGenPythia,6) // AliGenerator interface to Pythia
8d2cd130	281	};
	282	#endif
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