[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 TObjArray; 

class AliGenPythia : public AliGenMC
{
 public:

    typedef enum {kFlavorSelection, kParentSelection, kHeavyFlavor} 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;}
    virtual void    SetTune(Int_t itune) {fItune = itune;}

    // 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, Int_t pdfset = 0);
    virtual void    SetNuclearPDF(Int_t pdf) {fNucPdf = pdf;}
    //
    // 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  SetHadronInCalo    (Bool_t b)  {fHadronInCalo = 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  SetHadronInEMCAL(Bool_t b)     {fCheckEMCAL   = b; fHadronInCalo     = b;}
    virtual void  SetHadronInPHOS(Bool_t b)      {fCheckPHOS    = b; fHadronInCalo     = 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  SetElectronInEMCAL(Bool_t b)   {fEleInEMCAL   = b;}
    virtual void  SetPhotonInPHOS(Bool_t b)      {fCheckPHOS    = b; fPhotonInCalo     = b;}

    // Trigger on a minimum multiplicity
    virtual void  SetTriggerChargedMultiplicity(Int_t multiplicity, Float_t etamax = 0, Float_t ptmin = -1.) 
    {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEta = etamax; 
      fTriggerMultiplicityPtMin = ptmin;}
	
    // Calorimeters acceptance
    // Set Phi in degrees, and Eta coverage, should not be negative
    virtual void  SetEMCALAcceptance(Float_t phimin, Float_t phimax, Float_t deta) {fEMCALMinPhi = phimin ; fEMCALMaxPhi = phimax ; fEMCALEta = deta ; }
    virtual void  SetPHOSAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fPHOSMinPhi  = phimin ; fPHOSMaxPhi  = phimax ; fPHOSEta  = deta ; }

    virtual void  SetPhotonInPHOSeta(Bool_t b)        {fCheckPHOSeta = b; fPhotonInCalo     = b;}
    virtual void  SetTriggerParticleMinPt(Float_t pt) {fTriggerParticleMinPt = pt;}
    virtual void  SetPhotonMinPt(Float_t pt)          {fPhotonMinPt = pt;}
    virtual void  SetElectronMinPt(Float_t pt)        {fElectronMinPt = 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, Float_t ptmin = -1, Float_t ptmax = 1000) 
	{fTriggerParticle = particle; fTriggerEta = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}

    //
    // 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,  3 = NA, 4 = ACS
    virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
    // Set transport coefficient.
    void SetQhat(Float_t qhat) {fQhat = qhat;}
    //Set initial medium length.
    void SetLength(Float_t length) {fLength = length;}
    //set parameters for pyquen afterburner
    virtual void SetPyquenPar(Float_t t0=1., Float_t tau0=0.1, Int_t nf=0,Int_t iengl=0, Int_t iangl=3)
    {fpyquenT = t0; fpyquenTau = tau0; fpyquenNf=nf;fpyquenEloss=iengl;fpyquenAngle=iangl;}
    virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
    virtual void SetPatchOmegaDalitz(Int_t flag = 1) {fPatchOmegaDalitz = flag;}
    virtual void SetReadFromFile(const Text_t *filname) {fkFileName = 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);
  void LoadEvent(const TObjArray* 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 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) const;
    Bool_t IsInPHOS(Float_t phi, Float_t eta) const;
    Bool_t IsFromHeavyFlavor(Int_t ipart);
    //
    virtual void FinishRun();
    Bool_t CheckTrigger(const TParticle* jet1, const TParticle* jet2);
    //Used in some processes to selected child properties
    Bool_t CheckKinematicsOnChild();
    void     GetSubEventTime();

    void SetTuneForDiff(Bool_t a=kTRUE) {fkTuneForDiff=a;}
    AliDecayer * GetDecayer(){return fDecayer;}

 protected:
    // adjust the weight from kinematic cuts
    void     AdjustWeights() const;
    Int_t    GenerateMB();
    void     MakeHeader();    
    void     GeneratePileup();
    Process_t   fProcess;           //Process type
    Int_t       fItune;             // Pythia tune > 6.4
    StrucFunc_t fStrucFunc;         //Structure Function
    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
    Bool_t      fPatchOmegaDalitz;  //flag for omega dalitz decay patch
    Int_t       fNpartons;          //Number of partons before hadronisation
    Int_t       fReadFromFile;      //read partons from file
    Int_t       fQuench;            //Flag for quenching
    Float_t     fQhat;              //Transport coefficient (GeV^2/fm)
    Float_t     fLength;            //Medium length (fm)
    Float_t     fpyquenT;           //Pyquen initial temperature 
    Float_t     fpyquenTau;         //Pyquen initial proper time
    Int_t       fpyquenNf;          //Pyquen number of flavours into the game
    Int_t       fpyquenEloss;       //Pyquen type of energy loss 
    Int_t       fpyquenAngle;       //Pyquen radiation angle for gluons
    Float_t     fImpact;            //Impact parameter for quenching simulation (q-pythia) 
    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   fNucPdf;                // Nuclear pdf 0: EKS98 1: EPS08
    Int_t   fTriggerParticle;       // Trigger on this particle ...
    Float_t fTriggerEta;            // .. within |eta| < fTriggerEta
    Float_t fTriggerMinPt;          // .. within pt > fTriggerMinPt
    Float_t fTriggerMaxPt;          // .. within pt < fTriggerMaxPt
    Int_t       fTriggerMultiplicity;       // Trigger on events with a minimum charged multiplicity
    Float_t     fTriggerMultiplicityEta;    // in a given eta range
    Float_t     fTriggerMultiplicityPtMin;  // above this pT 
    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* fkFileName;          //! Name of file to read from


    Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
    Bool_t fHadronInCalo;     // Option to ask for hadron (not pi0) 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 fEleInEMCAL;       // Option to ask for Electron in EMCAL 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 fTriggerParticleMinPt; // Minimum momentum of Fragmentation Photon or Pi0 or other hadron
    Float_t fPhotonMinPt;          // Minimum momentum of Photon 
    Float_t fElectronMinPt;        // Minimum momentum of Electron 
    //Calorimeters eta-phi acceptance 
    Float_t fPHOSMinPhi;           // Minimum phi PHOS, degrees
    Float_t fPHOSMaxPhi;           // Maximum phi PHOS, degrees
    Float_t fPHOSEta;              // Minimum eta PHOS, coverage delta eta
    Float_t fEMCALMinPhi;          // Minimum phi EMCAL, degrees
    Float_t fEMCALMaxPhi;          // Maximum phi EMCAL, degrees
    Float_t fEMCALEta;             // Maximum eta EMCAL, coverage delta eta

    Bool_t fkTuneForDiff;    // Pythia tune 
    Int_t  fProcDiff;
 private:
    AliGenPythia(const AliGenPythia &Pythia);
    AliGenPythia & operator=(const AliGenPythia & rhs);


    Bool_t CheckDiffraction();
    Bool_t GetWeightsDiffraction(Double_t M, Double_t &Mmin, Double_t &Mmax, 
					       Double_t &wSD, Double_t &wDD, Double_t &wND);

    ClassDef(AliGenPythia, 13) // 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;
1058d9df	28	class TObjArray;
5fa4b20b	29
8d2cd130	30	class AliGenPythia : public AliGenMC
	31	{
	32	public:
	33
06956108	34	typedef enum {kFlavorSelection, kParentSelection, kHeavyFlavor} StackFillOpt_t;
8d2cd130	35	typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t;
	36	typedef enum {kCluster, kCell} JetRecMode_t;
	37
	38	AliGenPythia();
	39	AliGenPythia(Int_t npart);
8d2cd130	40	virtual ~AliGenPythia();
	41	virtual void Generate();
	42	virtual void Init();
90a236ce	43	// Range of events to be printed
8d2cd130	44	virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
90a236ce	45	// Select process type
8d2cd130	46	virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
f6a15f5c	47	virtual void SetTune(Int_t itune) {fItune = itune;}
20e47f08	48
90a236ce	49	// Select structure function
fa49ba58	50	virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;}
90a236ce	51	// Select pt of hard scattering
8d2cd130	52	virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
8d2cd130	53	{fPtHardMin = ptmin; fPtHardMax = ptmax; }
90a236ce	54	// y of hard scattering
8d2cd130	55	virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
	56	{fYHardMin = ymin; fYHardMax = ymax; }
	57	// Set initial and final state gluon radiation
	58	virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
	59	{fGinit = iIn; fGfinal = iFin;}
90a236ce	60	// Intrinsic kT
8d2cd130	61	virtual void SetPtKick(Float_t kt = 1.)
8d2cd130	62	{fPtKick = kt;}
beac474c	63	// Use the Pythia 6.3 new multiple interations scenario
	64	virtual void UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;}
	65	// Switch off heavy flavors
	66	virtual void SwitchHFOff() {fHFoff = kTRUE;}
90a236ce	67	// Set centre of mass energy
8d2cd130	68	virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
90a236ce	69	// Treat protons as inside nuclei with mass numbers a1 and a2
20e47f08	70	virtual void SetNuclei(Int_t a1, Int_t a2, Int_t pdfset = 0);
66f02a7f	71	virtual void SetNuclearPDF(Int_t pdf) {fNucPdf = pdf;}
90a236ce	72	//
	73	// Trigger options
	74	//
	75	// Energy range for jet trigger
8d2cd130	76	virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
8d2cd130	77	{fEtMinJet = etmin; fEtMaxJet = etmax;}
90a236ce	78	// Eta range for jet trigger
8d2cd130	79	virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
8d2cd130	80	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
90a236ce	81	// Phi range for jet trigger
8d2cd130	82	virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
8d2cd130	83	{fPhiMinJet = TMath::Pi()phimin/180.; fPhiMaxJet = TMath::Pi()phimax/180.;}
90a236ce	84	// Jet reconstruction mode; default is cone algorithm
	85	virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
	86	// Eta range for gamma trigger
8d2cd130	87	virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
8d2cd130	88	{fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
90a236ce	89	// Phi range for gamma trigger
8d2cd130	90	virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
8d2cd130	91	{fPhiMinGamma = TMath::Pi()phimin/180.; fPhiMaxGamma = TMath::Pi()phimax/180.;}
9fd8e520	92	// Select jets with fragmentation photon or pi0 going to PHOS or EMCAL
90a236ce	93	virtual void SetFragPhotonInCalo(Bool_t b) {fFragPhotonInCalo = b;}
43e3b80a	94	virtual void SetHadronInCalo (Bool_t b) {fHadronInCalo = b;}
90a236ce	95	virtual void SetPi0InCalo (Bool_t b) {fPi0InCalo = b;}
	96	virtual void SetPhotonInCalo(Bool_t b) {fPhotonInCalo = b;}
	97	virtual void SetCheckPHOS (Bool_t b) {fCheckPHOS = b;}
	98	virtual void SetCheckEMCAL(Bool_t b) {fCheckEMCAL = b;}
	99	virtual void SetFragPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fFragPhotonInCalo = b;}
	100	virtual void SetFragPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fFragPhotonInCalo = b;}
43e3b80a	101	virtual void SetHadronInEMCAL(Bool_t b) {fCheckEMCAL = b; fHadronInCalo = b;}
43e3b80a	102	virtual void SetHadronInPHOS(Bool_t b) {fCheckPHOS = b; fHadronInCalo = b;}
90a236ce	103	virtual void SetPi0InEMCAL(Bool_t b) {fCheckEMCAL = b; fPi0InCalo = b;}
	104	virtual void SetPi0InPHOS(Bool_t b) {fCheckPHOS = b; fPi0InCalo = b;}
	105	virtual void SetPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fPhotonInCalo = b;}
9dfe63b3	106	virtual void SetElectronInEMCAL(Bool_t b) {fEleInEMCAL = b;}
90a236ce	107	virtual void SetPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fPhotonInCalo = b;}
700b9416	108
700b9416	109	// Trigger on a minimum multiplicity
38112f3f	110	virtual void SetTriggerChargedMultiplicity(Int_t multiplicity, Float_t etamax = 0, Float_t ptmin = -1.)
	111	{fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEta = etamax;
	112	fTriggerMultiplicityPtMin = ptmin;}
700b9416	113
43e3b80a	114	// Calorimeters acceptance
	115	// Set Phi in degrees, and Eta coverage, should not be negative
	116	virtual void SetEMCALAcceptance(Float_t phimin, Float_t phimax, Float_t deta) {fEMCALMinPhi = phimin ; fEMCALMaxPhi = phimax ; fEMCALEta = deta ; }
	117	virtual void SetPHOSAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fPHOSMinPhi = phimin ; fPHOSMaxPhi = phimax ; fPHOSEta = deta ; }
	118
	119	virtual void SetPhotonInPHOSeta(Bool_t b) {fCheckPHOSeta = b; fPhotonInCalo = b;}
	120	virtual void SetTriggerParticleMinPt(Float_t pt) {fTriggerParticleMinPt = pt;}
	121	virtual void SetPhotonMinPt(Float_t pt) {fPhotonMinPt = pt;}
	122	virtual void SetElectronMinPt(Float_t pt) {fElectronMinPt = pt;}
90a236ce	123	// Trigger and rotate event
	124	void RotatePhi(Int_t iphcand, Bool_t& okdd);
	125	// Trigger on a single particle
2591bd0e	126	virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9, Float_t ptmin = -1, Float_t ptmax = 1000)
	127	{fTriggerParticle = particle; fTriggerEta = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}
	128
90a236ce	129	//
	130	// Heavy flavor options
	131	//
8d2cd130	132	// Set option for feed down from higher family
8d2cd130	133	virtual void SetFeedDownHigherFamily(Bool_t opt) {
90a236ce	134	fFeedDownOpt = opt;
8d2cd130	135	}
	136	// Set option for selecting particles kept in stack according to flavor
	137	// or to parent selection
	138	virtual void SetStackFillOpt(StackFillOpt_t opt) {
90a236ce	139	fStackFillOpt = opt;
8d2cd130	140	}
8d2cd130	141	// Set fragmentation option
c125238c	142	virtual void SetFragmentation(Bool_t opt) {
90a236ce	143	fFragmentation = opt;
8d2cd130	144	}
8d2cd130	145	// Set counting mode
c125238c	146	virtual void SetCountMode(CountMode_t mode) {
90a236ce	147	fCountMode = mode;
8d2cd130	148	}
90a236ce	149	//
	150	// Quenching
	151	//
cd07c39b	152	// Set quenching mode 0 = no, 1 = AM, 2 = IL, 3 = NA, 4 = ACS
7ea3ea5b	153	virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
cd07c39b	154	// Set transport coefficient.
	155	void SetQhat(Float_t qhat) {fQhat = qhat;}
	156	//Set initial medium length.
	157	void SetLength(Float_t length) {fLength = length;}
66b8652c	158	//set parameters for pyquen afterburner
	159	virtual void SetPyquenPar(Float_t t0=1., Float_t tau0=0.1, Int_t nf=0,Int_t iengl=0, Int_t iangl=3)
	160	{fpyquenT = t0; fpyquenTau = tau0; fpyquenNf=nf;fpyquenEloss=iengl;fpyquenAngle=iangl;}
5fa4b20b	161	virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
03358a32	162	virtual void SetPatchOmegaDalitz(Int_t flag = 1) {fPatchOmegaDalitz = flag;}
777e69b0	163	virtual void SetReadFromFile(const Text_t *filname) {fkFileName = filname; fReadFromFile = 1;}
90a236ce	164
	165	//
	166	// Pile-up
	167	//
	168	// Get interaction rate for pileup studies
9d7108a7	169	virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
9d7108a7	170	virtual Float_t GetInteractionRate() const {return fInteractionRate;}
8d2cd130	171	// get cross section of process
	172	virtual Float_t GetXsection() const {return fXsection;}
	173	// get triggered jets
7184e472	174	void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
014a9521	175	void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
592f8307	176	void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
	177	Float_t thresh = 0., Float_t etseed = 4.,
	178	Float_t minet = 10., Float_t r = 1.);
	179
1058d9df	180	void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
c2fc9d31	181	void LoadEvent(const TObjArray* stack, Int_t flag = 0, Int_t reHadr = 0);
8d2cd130	182	// Getters
7184e472	183	virtual Process_t GetProcess() const {return fProcess;}
	184	virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;}
	185	virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const
35346e8d	186	{ptmin = fPtHardMin; ptmax = fPtHardMax;}
7184e472	187	virtual void GetNuclei(Int_t& a1, Int_t& a2) const
1a626d4e	188	{a1 = fAProjectile; a2 = fATarget;}
7184e472	189	virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	190	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
7184e472	191	virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	192	{phimin = fPhiMinJet180./TMath::Pi(); phimax = fPhiMaxJet180/TMath::Pi();}
7184e472	193	virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
8d2cd130	194	{etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
7184e472	195	virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
8d2cd130	196	{phimin = fPhiMinGamma180./TMath::Pi(); phimax = fPhiMaxGamma180./TMath::Pi();}
8d2cd130	197	//
c2fc9d31	198	Bool_t IsInEMCAL(Float_t phi, Float_t eta) const;
c2fc9d31	199	Bool_t IsInPHOS(Float_t phi, Float_t eta) const;
06956108	200	Bool_t IsFromHeavyFlavor(Int_t ipart);
ec2c406e	201	//
8d2cd130	202	virtual void FinishRun();
c2fc9d31	203	Bool_t CheckTrigger(const TParticle* jet1, const TParticle* jet2);
0f6ee828	204	//Used in some processes to selected child properties
aea21c57	205	Bool_t CheckKinematicsOnChild();
9d7108a7	206	void GetSubEventTime();
dbd64db6	207
800be8b7	208	void SetTuneForDiff(Bool_t a=kTRUE) {fkTuneForDiff=a;}
1cf66fc9	209	AliDecayer * GetDecayer(){return fDecayer;}
800be8b7	210
8d2cd130	211	protected:
8d2cd130	212	// adjust the weight from kinematic cuts
7184e472	213	void AdjustWeights() const;
f913ec4f	214	Int_t GenerateMB();
f913ec4f	215	void MakeHeader();
9d7108a7	216	void GeneratePileup();
8d2cd130	217	Process_t fProcess; //Process type
efe3b1cd	218	Int_t fItune; // Pythia tune > 6.4
8d2cd130	219	StrucFunc_t fStrucFunc; //Structure Function
8d2cd130	220	Float_t fKineBias; //!Bias from kinematic selection
	221	Int_t fTrials; //!Number of trials for current event
	222	Int_t fTrialsRun; //!Number of trials for run
	223	Float_t fQ; //Mean Q
	224	Float_t fX1; //Mean x1
	225	Float_t fX2; //Mean x2
f913ec4f	226	Float_t fEventTime; //Time of the subevent
f913ec4f	227	Float_t fInteractionRate; //Interaction rate (set by user)
9d7108a7	228	Float_t fTimeWindow; //Time window for pileup events (set by user)
	229	Int_t fCurSubEvent; //Index of the current sub-event
	230	TArrayF *fEventsTime; //Subevents time for pileup
8d2cd130	231	Int_t fNev; //Number of events
	232	Int_t fFlavorSelect; //Heavy Flavor Selection
	233	Float_t fXsection; //Cross-section
	234	AliPythia *fPythia; //!Pythia
	235	Float_t fPtHardMin; //lower pT-hard cut
	236	Float_t fPtHardMax; //higher pT-hard cut
	237	Float_t fYHardMin; //lower y-hard cut
	238	Float_t fYHardMax; //higher y-hard cut
8d2cd130	239	Int_t fGinit; //initial state gluon radiation
8d2cd130	240	Int_t fGfinal; //final state gluon radiation
5fa4b20b	241	Int_t fHadronisation; //hadronisation
03358a32	242	Bool_t fPatchOmegaDalitz; //flag for omega dalitz decay patch
5fa4b20b	243	Int_t fNpartons; //Number of partons before hadronisation
5fa4b20b	244	Int_t fReadFromFile; //read partons from file
7ea3ea5b	245	Int_t fQuench; //Flag for quenching
cd07c39b	246	Float_t fQhat; //Transport coefficient (GeV^2/fm)
cd07c39b	247	Float_t fLength; //Medium length (fm)
66b8652c	248	Float_t fpyquenT; //Pyquen initial temperature
	249	Float_t fpyquenTau; //Pyquen initial proper time
	250	Int_t fpyquenNf; //Pyquen number of flavours into the game
	251	Int_t fpyquenEloss; //Pyquen type of energy loss
	252	Int_t fpyquenAngle; //Pyquen radiation angle for gluons
e6fe9b82	253	Float_t fImpact; //Impact parameter for quenching simulation (q-pythia)
8d2cd130	254	Float_t fPtKick; //Transverse momentum kick
	255	Bool_t fFullEvent; //!Write Full event if true
	256	AliDecayer *fDecayer; //!Pointer to the decayer instance
	257	Int_t fDebugEventFirst; //!First event to debug
	258	Int_t fDebugEventLast; //!Last event to debug
	259	Float_t fEtMinJet; //Minimum et of triggered Jet
	260	Float_t fEtMaxJet; //Maximum et of triggered Jet
	261	Float_t fEtaMinJet; //Minimum eta of triggered Jet
	262	Float_t fEtaMaxJet; //Maximum eta of triggered Jet
	263	Float_t fPhiMinJet; //Minimum phi of triggered Jet
	264	Float_t fPhiMaxJet; //Maximum phi of triggered Jet
	265	Int_t fJetReconstruction; //Jet Reconstruction mode
	266	Float_t fEtaMinGamma; // Minimum eta of triggered gamma
	267	Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
	268	Float_t fPhiMinGamma; // Minimum phi of triggered gamma
	269	Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
592f8307	270	Float_t fPycellEtaMax; // Max. eta for Pycell
	271	Int_t fPycellNEta; // Number of eta bins for Pycell
	272	Int_t fPycellNPhi; // Number of phi bins for Pycell
	273	Float_t fPycellThreshold; // Pycell threshold
	274	Float_t fPycellEtSeed; // Pycell seed
	275	Float_t fPycellMinEtJet; // Pycell min. jet et
	276	Float_t fPycellMaxRadius; // Pycell cone radius
8d2cd130	277	StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
	278	// that flavour or only with selected
	279	// parents and their decays
	280	Bool_t fFeedDownOpt; // Option to set feed down from higher
	281	// quark families (e.g. b->c)
90a236ce	282	Bool_t fFragmentation; // Option to activate fragmentation by Pythia
	283	Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
	284	Bool_t fNewMIS; // Flag for the new multipple interactions scenario
	285	Bool_t fHFoff; // Flag for switching heafy flavor production off
20e47f08	286	Int_t fNucPdf; // Nuclear pdf 0: EKS98 1: EPS08
90a236ce	287	Int_t fTriggerParticle; // Trigger on this particle ...
90a236ce	288	Float_t fTriggerEta; // .. within \|eta\| < fTriggerEta
2591bd0e	289	Float_t fTriggerMinPt; // .. within pt > fTriggerMinPt
2591bd0e	290	Float_t fTriggerMaxPt; // .. within pt < fTriggerMaxPt
38112f3f	291	Int_t fTriggerMultiplicity; // Trigger on events with a minimum charged multiplicity
	292	Float_t fTriggerMultiplicityEta; // in a given eta range
	293	Float_t fTriggerMultiplicityPtMin; // above this pT
90a236ce	294	CountMode_t fCountMode; // Options for counting when the event will be finished.
8d2cd130	295	// fCountMode = kCountAll --> All particles that end up in the
	296	// stack are counted
	297	// fCountMode = kCountParents --> Only selected parents are counted
	298	// fCountMode = kCountTrackabless --> Only particles flagged for tracking
	299	// are counted
	300	//
90a236ce	301	//
	302
	303	AliGenPythiaEventHeader* fHeader; //! Event header
	304	AliRunLoader* fRL; //! Run Loader
777e69b0	305	const Text_t* fkFileName; //! Name of file to read from
90a236ce	306
ec2c406e	307
90a236ce	308	Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
43e3b80a	309	Bool_t fHadronInCalo; // Option to ask for hadron (not pi0) in calorimeters acceptance
90a236ce	310	Bool_t fPi0InCalo; // Option to ask for Pi0 in calorimeters acceptance
90a236ce	311	Bool_t fPhotonInCalo; // Option to ask for Decay Photon in calorimeter acceptance
9dfe63b3	312	Bool_t fEleInEMCAL; // Option to ask for Electron in EMCAL acceptance
90a236ce	313	Bool_t fCheckEMCAL; // Option to ask for FragPhoton or Pi0 in calorimeters EMCAL acceptance
	314	Bool_t fCheckPHOS; // Option to ask for FragPhoton or Pi0 in calorimeters PHOS acceptance
	315	Bool_t fCheckPHOSeta; // Option to ask for PHOS eta acceptance
43e3b80a	316	Float_t fTriggerParticleMinPt; // Minimum momentum of Fragmentation Photon or Pi0 or other hadron
90a236ce	317	Float_t fPhotonMinPt; // Minimum momentum of Photon
9dfe63b3	318	Float_t fElectronMinPt; // Minimum momentum of Electron
ec2c406e	319	//Calorimeters eta-phi acceptance
43e3b80a	320	Float_t fPHOSMinPhi; // Minimum phi PHOS, degrees
	321	Float_t fPHOSMaxPhi; // Maximum phi PHOS, degrees
	322	Float_t fPHOSEta; // Minimum eta PHOS, coverage delta eta
	323	Float_t fEMCALMinPhi; // Minimum phi EMCAL, degrees
	324	Float_t fEMCALMaxPhi; // Maximum phi EMCAL, degrees
	325	Float_t fEMCALEta; // Maximum eta EMCAL, coverage delta eta
800be8b7	326
	327	Bool_t fkTuneForDiff; // Pythia tune
	328	Int_t fProcDiff;
93a2041b	329	private:
	330	AliGenPythia(const AliGenPythia &Pythia);
	331	AliGenPythia & operator=(const AliGenPythia & rhs);
	332
800be8b7	333
800be8b7	334	Bool_t CheckDiffraction();
c5dfa3e4	335	Bool_t GetWeightsDiffraction(Double_t M, Double_t &Mmin, Double_t &Mmax,
c5dfa3e4	336	Double_t &wSD, Double_t &wDD, Double_t &wND);
800be8b7	337
43e3b80a	338	ClassDef(AliGenPythia, 13) // AliGenerator interface to Pythia
8d2cd130	339	};
	340	#endif
	341
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