[u/mrichter/AliRoot.git] / TAmpt / AliGenAmpt.h

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

/* $Id$ */

#include "AliGenMC.h"
#include <TString.h>

class TAmpt;
class TParticle;
class TClonesArray;
class TGraph;
class AliGenHijingEventHeader;

class AliGenAmpt : public AliGenMC
{
  enum {kNoTrigger, kHardProcesses, kDirectPhotons};

  public:
    AliGenAmpt();
    AliGenAmpt(Int_t npart);
    virtual ~AliGenAmpt();

    virtual void    SetDecay(Bool_t b)                {fDecay = b;}
    virtual TAmpt  *Ampt() { return fAmpt; }
    virtual void    Generate();
    virtual void    Init();
    virtual void    SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
    virtual void    SetReferenceFrame(TString frame="CMS")
	{fFrame=frame;}
    virtual void    SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
	{fMinImpactParam=bmin; fMaxImpactParam=bmax;}
    virtual void    KeepFullEvent()                   {fKeep      =1;     }
    virtual void    SetJetQuenching(Int_t flag=1)     {fQuench     = flag;}
    virtual void    SetShadowing(Int_t flag=1)        {fShadowing  = flag;}
    virtual void    SetDecaysOff(Int_t flag=1)        {fDecaysOff  = flag;}
    virtual void    SetTrigger(Int_t flag=kNoTrigger) {fTrigger    = flag;}
    virtual void    SetFlavor(Int_t flag=0)           {fFlavor     = flag;}
    virtual void    SetEvaluate(Int_t flag=0)         {fEvaluate   = flag;}
    virtual void    SetSelectAll(Int_t flag=0)        {fSelectAll  = flag;}
    virtual void    SetRadiation(Int_t flag=3)        {fRadiation  = flag;}    
    virtual void    SetSpectators(Int_t spects=1)     {fSpectators = spects;}
    virtual void    SetPtHardMin(Float_t ptmin)       {fPtHardMin  = ptmin;}
    virtual void    SetPtHardMax(Float_t ptmax)       {fPtHardMax  = ptmax;}
    virtual void    SetPtJet(Float_t ptmin)           {fPtMinJet   = ptmin;}
    virtual void    SetSimpleJets(Int_t flag=0)       {fSimpleJet  = flag;}
    virtual void    SetNoGammas(Int_t flag=0)         {fNoGammas   = flag;}
    virtual void    SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
    virtual void    SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
	{fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
    virtual void    SetBoostLHC(Int_t flag = 0)       {fLHC        = flag;}
    virtual void    SetRandomPz(Bool_t flag = 0)      {fRandomPz   = flag;}
    virtual void    SwitchOffHeavyQuarks(Bool_t flag = kTRUE) {fNoHeavyQuarks = flag;}
    virtual void    SetIsoft(Int_t i)                         {fIsoft = i;  }
    virtual void    SetNtMax(Int_t max)                       {fNtMax = max;}
    virtual void    SetIpop(Int_t pop)                        {fIpop  = pop;}
    virtual void    SetXmu(Float_t m)                         {fXmu   = m;  }
    virtual void    SetAlpha(Float_t alpha)                   {fAlpha = alpha;            }
    virtual void    SetStringFrag(Float_t a, Float_t b)       {fStringA = a; fStringB = b;}
	    
    // Getters
    virtual TString GetReferenceFrame()  const {return fFrame;}
    virtual void    GetImpactParameterRange(Float_t& bmin, Float_t& bmax) const
	{bmin = fMinImpactParam; bmax = fMaxImpactParam;}
    virtual Int_t   GetJetQuenching()                    const {return fQuench;}
    virtual Int_t   GetShadowing()                       const {return fShadowing;}
    virtual Int_t   GetTrigger()                         const {return fTrigger;}
    virtual Int_t   GetFlavor()                          const {return fFlavor;}
    virtual Int_t   GetRadiation()                       const {return fRadiation;}    
    virtual Int_t   GetSpectators()                      const {return fSpectators;}
    virtual Float_t GetPtHardMin()                       const {return fPtHardMin;}
    virtual Float_t GetPtHardMax()                       const {return fPtHardMax;}
    virtual Float_t GetPtJet()                           const {return fPtMinJet;}
    virtual void    GetJetEtaRange(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();}
    const TClonesArray *GetParticles() const { return &fParticles; }

    // Physics Routines
    virtual Bool_t  ProvidesCollisionGeometry() const {return kTRUE;}
    virtual void    EvaluateCrossSections();
    virtual TGraph* CrossSection()     {return fDsigmaDb;}
    virtual TGraph* BinaryCollisions() {return fDnDb;}
    virtual Bool_t  CheckTrigger();

  protected:
    Bool_t      SelectFlavor(Int_t pid);
    void        MakeHeader();

    TString                  fFrame;           // Reference frame 
    Float_t                  fMinImpactParam;  // minimum impact parameter
    Float_t                  fMaxImpactParam;  // maximum impact parameter	
    Int_t                    fKeep;            // Flag to keep full event information
    Int_t                    fQuench;          // Flag to switch on jet quenching
    Int_t                    fShadowing;       // Flag to switch on nuclear effects on parton distribution function
    Int_t                    fDecaysOff;       // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
    Int_t                    fTrigger;         // Trigger type
    Int_t                    fEvaluate;        // Evaluate total and partial cross-sections
    Int_t                    fSelectAll;       // Flag to write the full event
    Int_t                    fFlavor;          // Selected particle flavor 4: charm+beauty 5: beauty
    Float_t                  fKineBias;        // Bias from kinematic selection
    Int_t                    fTrials;          // Number of trials
    Float_t                  fXsection;        // Cross-section
    TAmpt                   *fAmpt;            //!Ampt
    Float_t                  fPtHardMin;       // lower pT-hard cut 
    Float_t                  fPtHardMax;       // higher pT-hard cut
    Int_t                    fSpectators;      // put spectators on stack
    TGraph*                  fDsigmaDb;        // dSigma/db for the system
    TGraph*                  fDnDb;            // dNBinaryCollisions/db
    Float_t                  fPtMinJet;        // Minimum Pt of triggered Jet
    Float_t                  fEtaMinJet;       // Minimum eta of triggered Jet
    Float_t                  fEtaMaxJet;       // Maximum eta of triggered Jet
    Float_t                  fPhiMinJet;       // At least one of triggered Jets must be in this
    Float_t                  fPhiMaxJet;       // phi range
    Int_t                    fRadiation;       // Flag to switch on/off initial and final state radiation
    Int_t                    fSimpleJet;       // Flag to produce simple tiggered jet topology
    Int_t                    fNoGammas;        // Don't write gammas if flag "on"
    Int_t 	             fProjectileSpecn; // Num. of spectator neutrons from projectile nucleus
    Int_t 	             fProjectileSpecp; // Num. of spectator protons from projectile nucleus
    Int_t 	             fTargetSpecn;     // Num. of spectator neutrons from target nucleus
    Int_t 	             fTargetSpecp;     // Num. of spectator protons from target nucleus
    Int_t                    fLHC;             // Assume LHC as lab frame
    Bool_t                   fRandomPz;        // Randomise sign of pz event by event
    Bool_t                   fNoHeavyQuarks;   // If true no heavy quarks are produced
    Float_t                  fEventTime;       // The event time
    Int_t                    fIsoft;           // ISOFT (D=1): select Default AMPT or String Melting
    Int_t                    fNtMax;           // NTMAX: number of timesteps (D=150)
    Int_t                    fIpop;            // (D=1,yes;0,no) flag for popcorn mechanism(netbaryon stopping)
    Float_t                  fXmu;             // parton screening mass in fm^(-1) (D=3.2264d0)
    Float_t                  fAlpha;           // alpha running (fixed) coupling
    Float_t                  fStringA;         // string frag parameter A
    Float_t                  fStringB;         // string frag parameter B
    AliGenHijingEventHeader *fHeader;          // header
    Bool_t                   fDecay;           // decay "long-lived" particles

  private:
    AliGenAmpt(const AliGenAmpt &Ampt);
    AliGenAmpt &  operator=(const AliGenAmpt & rhs);

    // adjust the weight from kinematic cuts
    void   AdjustWeights();
    // check seleted daughters
    Bool_t DaughtersSelection(TParticle* iparticle);
    // check if stable
    Bool_t Stable(TParticle*  particle) const;

    ClassDef(AliGenAmpt, 3) // AliGenerator interface to Ampt
};
#endif
Commit	Line	Data
0119ef9a	1	#ifndef ALIGENAMPT_H
	2	#define ALIGENAMPT_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	/* $Id$ */
	7
	8	#include "AliGenMC.h"
	9	#include <TString.h>
	10
	11	class TAmpt;
	12	class TParticle;
	13	class TClonesArray;
	14	class TGraph;
	15	class AliGenHijingEventHeader;
	16
	17	class AliGenAmpt : public AliGenMC
	18	{
	19	enum {kNoTrigger, kHardProcesses, kDirectPhotons};
	20
	21	public:
	22	AliGenAmpt();
	23	AliGenAmpt(Int_t npart);
	24	virtual ~AliGenAmpt();
	25
43c4c137	26	virtual void SetDecay(Bool_t b) {fDecay = b;}
0119ef9a	27	virtual TAmpt *Ampt() { return fAmpt; }
	28	virtual void Generate();
	29	virtual void Init();
	30	virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
	31	virtual void SetReferenceFrame(TString frame="CMS")
	32	{fFrame=frame;}
	33	virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
	34	{fMinImpactParam=bmin; fMaxImpactParam=bmax;}
	35	virtual void KeepFullEvent() {fKeep =1; }
	36	virtual void SetJetQuenching(Int_t flag=1) {fQuench = flag;}
	37	virtual void SetShadowing(Int_t flag=1) {fShadowing = flag;}
	38	virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;}
	39	virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;}
	40	virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
	41	virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;}
	42	virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
	43	virtual void SetRadiation(Int_t flag=3) {fRadiation = flag;}
	44	virtual void SetSpectators(Int_t spects=1) {fSpectators = spects;}
	45	virtual void SetPtHardMin(Float_t ptmin) {fPtHardMin = ptmin;}
	46	virtual void SetPtHardMax(Float_t ptmax) {fPtHardMax = ptmax;}
	47	virtual void SetPtJet(Float_t ptmin) {fPtMinJet = ptmin;}
	48	virtual void SetSimpleJets(Int_t flag=0) {fSimpleJet = flag;}
	49	virtual void SetNoGammas(Int_t flag=0) {fNoGammas = flag;}
	50	virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	51	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
	52	virtual void SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
	53	{fPhiMinJet = TMath::Pi()phimin/180.; fPhiMaxJet = TMath::Pi()phimax/180.;}
	54	virtual void SetBoostLHC(Int_t flag = 0) {fLHC = flag;}
	55	virtual void SetRandomPz(Bool_t flag = 0) {fRandomPz = flag;}
	56	virtual void SwitchOffHeavyQuarks(Bool_t flag = kTRUE) {fNoHeavyQuarks = flag;}
a004b331	57	virtual void SetIsoft(Int_t i) {fIsoft = i; }
	58	virtual void SetNtMax(Int_t max) {fNtMax = max;}
	59	virtual void SetIpop(Int_t pop) {fIpop = pop;}
	60	virtual void SetXmu(Float_t m) {fXmu = m; }
	61	virtual void SetAlpha(Float_t alpha) {fAlpha = alpha; }
	62	virtual void SetStringFrag(Float_t a, Float_t b) {fStringA = a; fStringB = b;}
0119ef9a	63
	64	// Getters
	65	virtual TString GetReferenceFrame() const {return fFrame;}
	66	virtual void GetImpactParameterRange(Float_t& bmin, Float_t& bmax) const
	67	{bmin = fMinImpactParam; bmax = fMaxImpactParam;}
	68	virtual Int_t GetJetQuenching() const {return fQuench;}
	69	virtual Int_t GetShadowing() const {return fShadowing;}
	70	virtual Int_t GetTrigger() const {return fTrigger;}
	71	virtual Int_t GetFlavor() const {return fFlavor;}
	72	virtual Int_t GetRadiation() const {return fRadiation;}
	73	virtual Int_t GetSpectators() const {return fSpectators;}
	74	virtual Float_t GetPtHardMin() const {return fPtHardMin;}
	75	virtual Float_t GetPtHardMax() const {return fPtHardMax;}
	76	virtual Float_t GetPtJet() const {return fPtMinJet;}
	77	virtual void GetJetEtaRange(Float_t& etamin, Float_t& etamax) const
	78	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
	79	virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
	80	{phimin = fPhiMinJet180./TMath::Pi(); phimax = fPhiMaxJet180./TMath::Pi();}
	81	const TClonesArray *GetParticles() const { return &fParticles; }
	82
	83	// Physics Routines
	84	virtual Bool_t ProvidesCollisionGeometry() const {return kTRUE;}
	85	virtual void EvaluateCrossSections();
	86	virtual TGraph* CrossSection() {return fDsigmaDb;}
	87	virtual TGraph* BinaryCollisions() {return fDnDb;}
	88	virtual Bool_t CheckTrigger();
	89
	90	protected:
	91	Bool_t SelectFlavor(Int_t pid);
	92	void MakeHeader();
	93
	94	TString fFrame; // Reference frame
	95	Float_t fMinImpactParam; // minimum impact parameter
	96	Float_t fMaxImpactParam; // maximum impact parameter
	97	Int_t fKeep; // Flag to keep full event information
	98	Int_t fQuench; // Flag to switch on jet quenching
	99	Int_t fShadowing; // Flag to switch on nuclear effects on parton distribution function
	100	Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
	101	Int_t fTrigger; // Trigger type
	102	Int_t fEvaluate; // Evaluate total and partial cross-sections
	103	Int_t fSelectAll; // Flag to write the full event
	104	Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
	105	Float_t fKineBias; // Bias from kinematic selection
	106	Int_t fTrials; // Number of trials
	107	Float_t fXsection; // Cross-section
	108	TAmpt *fAmpt; //!Ampt
	109	Float_t fPtHardMin; // lower pT-hard cut
	110	Float_t fPtHardMax; // higher pT-hard cut
	111	Int_t fSpectators; // put spectators on stack
	112	TGraph* fDsigmaDb; // dSigma/db for the system
	113	TGraph* fDnDb; // dNBinaryCollisions/db
	114	Float_t fPtMinJet; // Minimum Pt of triggered Jet
	115	Float_t fEtaMinJet; // Minimum eta of triggered Jet
	116	Float_t fEtaMaxJet; // Maximum eta of triggered Jet
	117	Float_t fPhiMinJet; // At least one of triggered Jets must be in this
	118	Float_t fPhiMaxJet; // phi range
	119	Int_t fRadiation; // Flag to switch on/off initial and final state radiation
	120	Int_t fSimpleJet; // Flag to produce simple tiggered jet topology
	121	Int_t fNoGammas; // Don't write gammas if flag "on"
	122	Int_t fProjectileSpecn; // Num. of spectator neutrons from projectile nucleus
	123	Int_t fProjectileSpecp; // Num. of spectator protons from projectile nucleus
	124	Int_t fTargetSpecn; // Num. of spectator neutrons from target nucleus
	125	Int_t fTargetSpecp; // Num. of spectator protons from target nucleus
	126	Int_t fLHC; // Assume LHC as lab frame
127	Bool_t fRandomPz; // Randomise sign of pz event by event
128	Bool_t fNoHeavyQuarks; // If true no heavy quarks are produced
129	Float_t fEventTime; // The event time
130	Int_t fIsoft; // ISOFT (D=1): select Default AMPT or String Melting
131	Int_t fNtMax; // NTMAX: number of timesteps (D=150)
132	Int_t fIpop; // (D=1,yes;0,no) flag for popcorn mechanism(netbaryon stopping)
133	Float_t fXmu; // parton screening mass in fm^(-1) (D=3.2264d0)
a004b331	134	Float_t fAlpha; // alpha running (fixed) coupling
	135	Float_t fStringA; // string frag parameter A
	136	Float_t fStringB; // string frag parameter B
0119ef9a	137	AliGenHijingEventHeader *fHeader; // header
d60fac1e	138	Bool_t fDecay; // decay "long-lived" particles
0119ef9a	139
	140	private:
	141	AliGenAmpt(const AliGenAmpt &Ampt);
	142	AliGenAmpt & operator=(const AliGenAmpt & rhs);
	143
	144	// adjust the weight from kinematic cuts
	145	void AdjustWeights();
	146	// check seleted daughters
	147	Bool_t DaughtersSelection(TParticle* iparticle);
	148	// check if stable
	149	Bool_t Stable(TParticle* particle) const;
	150
d60fac1e	151	ClassDef(AliGenAmpt, 3) // AliGenerator interface to Ampt
0119ef9a	152	};
0119ef9a	153	#endif