[u/mrichter/AliRoot.git] / THijing / AliGenHijing.h

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

/* $Id$ */

// Generator using HIJING as an external generator
// The main HIJING options are accessable for the user through this interface.
// andreas.morsch@cern.ch

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

class THijing;
class TArrayI;
class TParticle;
class TClonesArray;
class TGraph;

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

 public:
    AliGenHijing();
    AliGenHijing(Int_t npart);
    AliGenHijing(const AliGenHijing &Hijing);
    virtual ~AliGenHijing();
    virtual void    Generate();
    virtual void    Init();
    // set centre of mass energy
    virtual void    SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
    virtual void    SetReferenceFrame(TString frame="CMS")
	{fFrame=frame;}
    virtual void    SetProjectile(TString proj="A", Int_t a=208, Int_t z=82)
	{fProjectile = proj; fAProjectile = a; fZProjectile = z;}    
    virtual void    SetTarget(TString tar="A", Int_t a=208, Int_t z=82)
	{fTarget = tar; fATarget = a; fZTarget = z;}    
    virtual void    SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
	{fMinImpactParam=bmin; fMaxImpactParam=bmax;}
    virtual void    KeepFullEvent();
    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    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;}
// Getters
    virtual Float_t GetEnergyCMS() {return fEnergyCMS;}
    virtual TString GetReferenceFrame() {return fFrame;}
    virtual void    GetProjectile(TString& tar, Int_t& a, Int_t& z)
	{tar = fProjectile; a = fAProjectile; z = fZProjectile;}    
    virtual void    GetTarget(TString& tar, Int_t& a, Int_t& z)
	{tar = fTarget; a = fATarget; z = fZTarget;}    
    virtual void    GetImpactParameterRange(Float_t& bmin, Float_t& bmax)
	{bmin = fMinImpactParam; bmax = fMaxImpactParam;}
    virtual Int_t   GetJetQuenching()                    {return fQuench;}
    virtual Int_t   GetShadowing()                       {return fShadowing;}
    virtual Int_t   GetTrigger(Int_t flag=kNoTrigger)    {return fTrigger;}
    virtual Int_t   GetFlavor(Int_t flag=0)              {return fFlavor;}
    virtual Int_t   GetRadiation(Int_t flag=3)           {return fRadiation;}    
    virtual Int_t   GetSpectators(Int_t spects=1)        {return fSpectators;}
    virtual Float_t GetPtJet(Float_t ptmin)              {return fPtMinJet;}
    virtual void    GetJetEtaRange(Float_t& etamin, Float_t& etamax)
	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
    virtual void    GetJetPhiRange(Float_t& phimin, Float_t& phimax)
	{phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180./TMath::Pi();}
    

// Physics Routines
    virtual Bool_t ProvidesCollisionGeometry() {return kTRUE;}
    virtual AliCollisionGeometry* CollisionGeometry() {return fCollisionGeometry;}
    virtual void EvaluateCrossSections();
    virtual void Boost();
    virtual TGraph* CrossSection()     {return fDsigmaDb;}
    virtual TGraph* BinaryCollisions() {return fDnDb;}
    virtual Bool_t  CheckTrigger();
//
    AliGenHijing &  operator=(const AliGenHijing & rhs);
 protected:
    Bool_t SelectFlavor(Int_t pid);
    void   MakeHeader();

 protected:
    TString     fFrame;         // Reference frame 
    TString     fProjectile;    // Projectile
    TString     fTarget;        // Target
    Int_t       fAProjectile;    // Projectile A
    Int_t       fZProjectile;    // Projectile Z
    Int_t       fATarget;        // Target A
    Int_t       fZTarget;        // Target Z
    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     fEnergyCMS;      // Centre of mass energy
    Float_t     fKineBias;       // Bias from kinematic selection
    Int_t       fTrials;         // Number of trials
    TArrayI     fParentSelect;   // Parent particles to be selected 
    TArrayI     fChildSelect;    // Decay products to be selected
    Float_t     fXsection;       // Cross-section
    THijing    *fHijing;         // Hijing
    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"
    
// ZDC proposal (by Chiara) to store num. of SPECTATORS protons and neutrons
    Int_t 	fSpecn;		 // Num. of spectator neutrons
    Int_t 	fSpecp;		 // Num. of spectator protons
    Int_t       fLHC;            // Assume LHC as lab frame
    TClonesArray* fParticles;    // Particle List
    
 private:
    // adjust the weight from kinematic cuts
    void   AdjustWeights();
    // check seleted daughters
    Bool_t DaughtersSelection(TParticle* iparticle);
    // check if stable
    Bool_t Stable(TParticle*  particle);
    
    ClassDef(AliGenHijing,4) // AliGenerator interface to Hijing
};
#endif
Commit	Line	Data
36b81802	1	#ifndef ALIGENHIJING_H
	2	#define ALIGENHIJING_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	// Generator using HIJING as an external generator
	9	// The main HIJING options are accessable for the user through this interface.
	10	// andreas.morsch@cern.ch
	11
	12	#include "AliGenMC.h"
	13	#include <TString.h>
	14	#include <TArrayI.h>
	15
	16	class THijing;
	17	class TArrayI;
	18	class TParticle;
	19	class TClonesArray;
	20	class TGraph;
	21
	22	class AliGenHijing : public AliGenMC
	23	{
	24	enum {kNoTrigger, kHardProcesses, kDirectPhotons};
	25
	26	public:
	27	AliGenHijing();
	28	AliGenHijing(Int_t npart);
	29	AliGenHijing(const AliGenHijing &Hijing);
	30	virtual ~AliGenHijing();
	31	virtual void Generate();
	32	virtual void Init();
	33	// set centre of mass energy
	34	virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
	35	virtual void SetReferenceFrame(TString frame="CMS")
	36	{fFrame=frame;}
	37	virtual void SetProjectile(TString proj="A", Int_t a=208, Int_t z=82)
	38	{fProjectile = proj; fAProjectile = a; fZProjectile = z;}
	39	virtual void SetTarget(TString tar="A", Int_t a=208, Int_t z=82)
	40	{fTarget = tar; fATarget = a; fZTarget = z;}
	41	virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
	42	{fMinImpactParam=bmin; fMaxImpactParam=bmax;}
	43	virtual void KeepFullEvent();
	44	virtual void SetJetQuenching(Int_t flag=1) {fQuench = flag;}
	45	virtual void SetShadowing(Int_t flag=1) {fShadowing = flag;}
	46	virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;}
	47	virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;}
	48	virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
	49	virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;}
	50	virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
	51	virtual void SetRadiation(Int_t flag=3) {fRadiation = flag;}
	52	virtual void SetSpectators(Int_t spects=1) {fSpectators = spects;}
	53	virtual void SetPtJet(Float_t ptmin) {fPtMinJet = ptmin;}
	54	virtual void SetSimpleJets(Int_t flag=0) {fSimpleJet = flag;}
	55	virtual void SetNoGammas(Int_t flag=0) {fNoGammas = flag;}
	56
	57	virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
	58	{fEtaMinJet = etamin; fEtaMaxJet = etamax;}
	59	virtual void SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
	60	{fPhiMinJet = TMath::Pi()phimin/180.; fPhiMaxJet = TMath::Pi()phimax/180.;}
	61	virtual void SetBoostLHC(Int_t flag = 0) {fLHC = flag;}
	62	// Getters
	63	virtual Float_t GetEnergyCMS() {return fEnergyCMS;}
	64	virtual TString GetReferenceFrame() {return fFrame;}
65	virtual void GetProjectile(TString& tar, Int_t& a, Int_t& z)
66	{tar = fProjectile; a = fAProjectile; z = fZProjectile;}
67	virtual void GetTarget(TString& tar, Int_t& a, Int_t& z)
68	{tar = fTarget; a = fATarget; z = fZTarget;}
69	virtual void GetImpactParameterRange(Float_t& bmin, Float_t& bmax)
70	{bmin = fMinImpactParam; bmax = fMaxImpactParam;}
71	virtual Int_t GetJetQuenching() {return fQuench;}
72	virtual Int_t GetShadowing() {return fShadowing;}
73	virtual Int_t GetTrigger(Int_t flag=kNoTrigger) {return fTrigger;}
74	virtual Int_t GetFlavor(Int_t flag=0) {return fFlavor;}
75	virtual Int_t GetRadiation(Int_t flag=3) {return fRadiation;}
76	virtual Int_t GetSpectators(Int_t spects=1) {return fSpectators;}
77	virtual Float_t GetPtJet(Float_t ptmin) {return fPtMinJet;}
78	virtual void GetJetEtaRange(Float_t& etamin, Float_t& etamax)
79	{etamin = fEtaMinJet; etamax = fEtaMaxJet;}
80	virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax)
81	{phimin = fPhiMinJet180./TMath::Pi(); phimax = fPhiMaxJet180./TMath::Pi();}
82
83
84	// Physics Routines
85	virtual Bool_t ProvidesCollisionGeometry() {return kTRUE;}
86	virtual AliCollisionGeometry* CollisionGeometry() {return fCollisionGeometry;}
87	virtual void EvaluateCrossSections();
88	virtual void Boost();
89	virtual TGraph* CrossSection() {return fDsigmaDb;}
90	virtual TGraph* BinaryCollisions() {return fDnDb;}
91	virtual Bool_t CheckTrigger();
92	//
93	AliGenHijing & operator=(const AliGenHijing & rhs);
94	protected:
95	Bool_t SelectFlavor(Int_t pid);
96	void MakeHeader();
97
98	protected:
99	TString fFrame; // Reference frame
100	TString fProjectile; // Projectile
101	TString fTarget; // Target
102	Int_t fAProjectile; // Projectile A
103	Int_t fZProjectile; // Projectile Z
104	Int_t fATarget; // Target A
105	Int_t fZTarget; // Target Z
106	Float_t fMinImpactParam; // minimum impact parameter
107	Float_t fMaxImpactParam; // maximum impact parameter
108	Int_t fKeep; // Flag to keep full event information
109	Int_t fQuench; // Flag to switch on jet quenching
110	Int_t fShadowing; // Flag to switch on nuclear effects on parton distribution function
111	Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
112	Int_t fTrigger; // Trigger type
113	Int_t fEvaluate; // Evaluate total and partial cross-sections
114	Int_t fSelectAll; // Flag to write the full event
115	Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
116	Float_t fEnergyCMS; // Centre of mass energy
117	Float_t fKineBias; // Bias from kinematic selection
118	Int_t fTrials; // Number of trials
119	TArrayI fParentSelect; // Parent particles to be selected
120	TArrayI fChildSelect; // Decay products to be selected
121	Float_t fXsection; // Cross-section
122	THijing *fHijing; // Hijing
123	Float_t fPtHardMin; // lower pT-hard cut
124	Float_t fPtHardMax; // higher pT-hard cut
125	Int_t fSpectators; // put spectators on stack
126	TGraph* fDsigmaDb; // dSigma/db for the system
127	TGraph* fDnDb; // dNBinaryCollisions/db
128	Float_t fPtMinJet; // Minimum Pt of triggered Jet
129	Float_t fEtaMinJet; // Minimum eta of triggered Jet
130	Float_t fEtaMaxJet; // Maximum eta of triggered Jet
131	Float_t fPhiMinJet; // At least one of triggered Jets must be in this
132	Float_t fPhiMaxJet; // phi range
133	Int_t fRadiation; // Flag to switch on/off initial and final state radiation
134	Int_t fSimpleJet; // Flag to produce simple tiggered jet topology
135	Int_t fNoGammas; // Don't write gammas if flag "on"
136
137	// ZDC proposal (by Chiara) to store num. of SPECTATORS protons and neutrons
138	Int_t fSpecn; // Num. of spectator neutrons
139	Int_t fSpecp; // Num. of spectator protons
140	Int_t fLHC; // Assume LHC as lab frame
141	TClonesArray* fParticles; // Particle List
142
143	private:
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);
150
151	ClassDef(AliGenHijing,4) // AliGenerator interface to Hijing
152	};
153	#endif
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