[u/mrichter/AliRoot.git] / EVGEN / 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                               */

/* $Id$ */


#include "AliGenerator.h"
#include "GenTypeDefs.h"
#include <THijing.h>
#include <TArrayI.h>

class TArrayI;
class TParticle;

class AliGenHijing : public AliGenerator
{
    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(char* frame="CMS     ") {fFrame=frame;}
    virtual void    SetProjectile(char* proj="A       ", Int_t a=208, Int_t z=97)
	{fProjectile = proj;
	fAProjectile = a;
	fZProjectile = z;}    
    virtual void    SetTarget(char* tar="A       ", Int_t a=208, Int_t z=97)
	{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;}    
    AliGenHijing &  operator=(const AliGenHijing & rhs);
// Physics Routines	    
    virtual void EvaluateCrossSections();
    
 protected:
    Bool_t SelectFlavor(Int_t pid);
 protected:
    char       *fFrame;         // Reference frame 
    char       *fProjectile;    // Projectile
    char       *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 voclear 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
    Decay_t     fForceDecay;    // Decay channel  are forced
    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

 private:
    // check if particle is selected as parent particle
    Bool_t ParentSelected(Int_t ip);
    // check if particle is selected as child particle
    Bool_t ChildSelected(Int_t ip);
    // all kinematic selection cuts go here 
    Bool_t KinematicSelection(TParticle *particle);
    // adjust the weight from kinematic cuts
    void   AdjustWeights();
    // check seleted daughters
    Bool_t DaughtersSelection(TParticle* iparticle, TClonesArray* particles);
    ClassDef(AliGenHijing,1) // AliGenerator interface to Hijing
};
#endif
Commit	Line	Data
110410f9	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
	9	#include "AliGenerator.h"
	10	#include "GenTypeDefs.h"
	11	#include <THijing.h>
	12	#include <TArrayI.h>
	13
	14	class TArrayI;
	15	class TParticle;
	16
	17	class AliGenHijing : public AliGenerator
	18	{
	19	enum {kNoTrigger, kHardProcesses, kDirectPhotons};
	20
	21	public:
	22	AliGenHijing();
	23	AliGenHijing(Int_t npart);
	24	AliGenHijing(const AliGenHijing &Hijing);
	25	virtual ~AliGenHijing();
	26	virtual void Generate();
	27	virtual void Init();
	28	// set centre of mass energy
	29	virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
	30	virtual void SetReferenceFrame(char* frame="CMS ") {fFrame=frame;}
	31	virtual void SetProjectile(char* proj="A ", Int_t a=208, Int_t z=97)
	32	{fProjectile = proj;
	33	fAProjectile = a;
	34	fZProjectile = z;}
	35	virtual void SetTarget(char* tar="A ", Int_t a=208, Int_t z=97)
	36	{fTarget = tar;
	37	fATarget = a;
	38	fZTarget =z;}
	39	virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax =15.)
	40	{ fMinImpactParam=bmin;
	41	fMaxImpactParam=bmax;
	42	}
	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;}
eb342d2d	48	virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
110410f9	49	virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;}
110410f9	50	virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
eb342d2d	51	AliGenHijing & operator=(const AliGenHijing & rhs);
110410f9	52	// Physics Routines
	53	virtual void EvaluateCrossSections();
	54
eb342d2d	55	protected:
eb342d2d	56	Bool_t SelectFlavor(Int_t pid);
110410f9	57	protected:
	58	char *fFrame; // Reference frame
	59	char *fProjectile; // Projectile
	60	char *fTarget; // Target
	61	Int_t fAProjectile; // Projectile A
	62	Int_t fZProjectile; // Projectile Z
	63	Int_t fATarget; // Target A
	64	Int_t fZTarget; // Target Z
	65	Float_t fMinImpactParam; // minimum impact parameter
	66	Float_t fMaxImpactParam; // maximum impact parameter
	67	Int_t fKeep; // Flag to keep full event information
	68	Int_t fQuench; // Flag to switch on jet quenching
	69	Int_t fShadowing; // Flag to switch on voclear effects on parton distribution function
	70	Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
	71	Int_t fTrigger; // Trigger type
	72	Int_t fEvaluate; // Evaluate total and partial cross-sections
	73	Int_t fSelectAll; // Flag to write the full event
eb342d2d	74	Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
110410f9	75	Decay_t fForceDecay; // Decay channel are forced
	76	Float_t fEnergyCMS; // Centre of mass energy
	77	Float_t fKineBias; // Bias from kinematic selection
	78	Int_t fTrials; // Number of trials
	79	TArrayI fParentSelect; // Parent particles to be selected
	80	TArrayI fChildSelect; // Decay products to be selected
	81	Float_t fXsection; // Cross-section
	82	THijing *fHijing; // Hijing
	83	Float_t fPtHardMin; // lower pT-hard cut
	84	Float_t fPtHardMax; // higher pT-hard cut
	85
	86	private:
	87	// check if particle is selected as parent particle
	88	Bool_t ParentSelected(Int_t ip);
	89	// check if particle is selected as child particle
	90	Bool_t ChildSelected(Int_t ip);
	91	// all kinematic selection cuts go here
	92	Bool_t KinematicSelection(TParticle *particle);
	93	// adjust the weight from kinematic cuts
	94	void AdjustWeights();
	95	// check seleted daughters
	96	Bool_t DaughtersSelection(TParticle* iparticle, TClonesArray* particles);
	97	ClassDef(AliGenHijing,1) // AliGenerator interface to Hijing
	98	};
	99	#endif
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