Filling the GRP entry inside ALiSimulation. Can be swtiched off/on via SetWriteGRPEnt...
[u/mrichter/AliRoot.git] / THerwig / AliGenHerwig.h
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618e1dc0 1#ifndef ALIGENHERWIG_H
2#define ALIGENHERWIG_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 HERWIG as an external generator
9// The main HERWIG options are accessable for the user through this interface.
c4ff35db 10// Author Andreas Morsch
11// andreas.morsch@cern.ch
618e1dc0 12
13#include "AliGenMC.h"
14#include <TString.h>
15#include <TArrayI.h>
16#include <AliRndm.h>
17#include <AliStructFuncType.h>
18
19class THerwig6;
20class TArrayI;
21class TParticle;
22class TClonesArray;
23
24
25class AliGenHerwig : public AliGenMC
26
27{
28 enum {kNoTrigger, kHardProcesses, kDirectPhotons};
29
30 public:
31 AliGenHerwig();
32 AliGenHerwig(Int_t npart);
618e1dc0 33 virtual ~AliGenHerwig();
34 virtual void Generate();
35 virtual void Init();
7677b281 36 virtual void InitJimmy();
618e1dc0 37 // set centre of mass energy
38 virtual void SetBeamMomenta(Float_t p1=7000., Float_t p2=7000.)
39 {fMomentum1 = p1; fMomentum2 = p2;}
7677b281 40 virtual void SetProcess(Int_t proc) {fProcess = proc;}
618e1dc0 41 virtual void KeepFullEvent();
42 virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;}
43 virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;}
7677b281 44 virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
45 virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
7677b281 46 virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L)
618e1dc0 47 {fStrucFunc = func;}
48 virtual void SetPtHardMin(Double_t pt) {fPtHardMin=pt;}
49 virtual void SetPtRMS(Double_t pt) {fPtRMS=pt;}
50 virtual void SetMaxPr(Int_t i) {fMaxPr=i;}
51 virtual void SetMaxErrors(Int_t i) {fMaxErrors=i;}
52 virtual void FinishRun();
7677b281 53 virtual void FinishRunJimmy();
618e1dc0 54 virtual void SetEnSoft(Double_t e) {fEnSoft=e;}
7677b281 55
e2054d85 56 virtual void SetHardProcessFile(TString filename) {fFileName=TString(filename);};
57 virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
58
618e1dc0 59 protected:
60 Bool_t SelectFlavor(Int_t pid);
61
62 protected:
618e1dc0 63 TString fAutPDF; // PDF group
64 Int_t fModPDF; // PDF set
65 StrucFunc_t fStrucFunc; //Structure Function
66 Int_t fKeep; // Flag to keep full event information
67 Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
68 Int_t fTrigger; // Trigger type
69 Int_t fSelectAll; // Flag to write the full event
70 Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
618e1dc0 71 Float_t fMomentum1; // Momentum of projectile
72 Float_t fMomentum2; // Momentum of target
73 Float_t fKineBias; // Bias from kinematic selection
74 Int_t fTrials; // Number of trials
618e1dc0 75 Float_t fXsection; // Cross-section
76 THerwig6 *fHerwig; // Herwig
77 Int_t fProcess; // Process number
7677b281 78 Double_t fPtHardMin; // lower pT-hard cut
618e1dc0 79 Double_t fPtRMS; // intrinsic pt of incoming hadrons
80 Int_t fMaxPr; // maximum number of events to print out
81 Int_t fMaxErrors; // maximum number of errors allowed
82 Double_t fEnSoft; // change on soft energy distribution
e2054d85 83 Int_t fEv1Pr; // first event to be printed
84 Int_t fEv2Pr; // last event to be printed
85 TString fFileName; //!Name of file to read from hard scattering
7677b281 86
618e1dc0 87 private:
93a2041b 88 AliGenHerwig(const AliGenHerwig &Herwig);
89 AliGenHerwig & operator=(const AliGenHerwig & rhs);
90
618e1dc0 91 // check if particle is selected as parent particle
92 Bool_t ParentSelected(Int_t ip);
93 // check if particle is selected as child particle
94 Bool_t ChildSelected(Int_t ip);
95 // adjust the weight from kinematic cuts
96 void AdjustWeights();
97 // check seleted daughters
98 Bool_t DaughtersSelection(TParticle* iparticle, TClonesArray* particles);
99 // check if stable
100 Bool_t Stable(TParticle* particle);
7677b281 101
618e1dc0 102 void InitPDF();
103
fc7e1b1c 104 ClassDef(AliGenHerwig,2) // AliGenerator interface to Herwig
618e1dc0 105};
106#endif
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