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1 | #ifndef ALICOLLIDER2_H | |
2 | #define ALICOLLIDER2_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | // $Id: AliCollider.h,v 1.9 2004/05/04 15:33:04 nick Exp $ | |
7 | ||
8 | #include "TPythia6.h" | |
9 | #include "TString.h" | |
10 | #include "TFile.h" | |
11 | #include "TTree.h" | |
12 | #include "TArrayI.h" | |
13 | ||
14 | #include "AliEvent.h" | |
15 | #include "AliRandom.h" | |
16 | ||
17 | class AliCollider : public TPythia6 | |
18 | { | |
19 | public: | |
20 | AliCollider(); // Default constructor | |
21 | virtual ~AliCollider(); // Default destructor | |
22 | void SetOutputFile(TString name); // Initialise the ROOT output data file | |
23 | void SetVertexMode(Int_t mode); // Select mode for (sec.) vertex structure creation | |
24 | Int_t GetVertexMode() const; // Provide vertex structure creation mode | |
25 | void SetResolution(Double_t res); // Set resolution (in meter) for resolving (sec.) vertices | |
26 | Double_t GetResolution() const; // Provide (sec.) vertex resolving resolution (in meter) | |
27 | void SetRunNumber(Int_t run); // Set user defined run number | |
28 | Int_t GetRunNumber() const; // Provide the user defined run number | |
29 | void SetPrintFreq(Int_t n); // Set print frequency for every 'n' events | |
30 | Int_t GetPrintFreq() const; // Provide the print frequency | |
31 | void Init(char* frame,char* beam,char* target,Float_t win); // Standard Pythia initialisation | |
32 | void Init(char* frame,Int_t zp,Int_t ap,Int_t zt,Int_t at,Float_t win); // Nucl-Nucl initialisation | |
33 | void SetStable(Int_t id,Int_t mode=1); // Declare a certain particle as stable or not | |
34 | void SelectEvent(Int_t id); // Select only events containing specified particles | |
35 | Int_t GetSelectionFlag() const; // Return the selection flag for this event | |
36 | void MakeEvent(Int_t npt=0,Int_t mlist=-1,Int_t medit=1);// Generate a single event with npt participant nucleons | |
37 | void EndRun(); // Properly close all buffers and output file | |
38 | AliEvent* GetEvent(Int_t select=0) const; // Provide pointer to the generated event structure | |
39 | void SetSpectatorPmin(Float_t pmin); // Set minimal momentum for spectator track to be stored | |
40 | Float_t GetSpectatorPmin() const; // Provide the minimal momentum for spectator tracks | |
41 | void SetUserControl(Int_t flag); // Selection of full user control w.r.t. MC parameters. | |
42 | Int_t GetUserControl() const; // Provide the value of the user control flag. | |
43 | void SetElastic(Int_t flag); // Selection flag for elastic and diffractive processes. | |
44 | Int_t GetElastic() const; // Provide the value of the elastic selection flag. | |
45 | ||
46 | protected: | |
47 | Int_t fVertexmode; // The vertex structure creation mode | |
48 | Double_t fResolution; // The resolution (in meter) for resolving (sec.) vertices | |
49 | Int_t fRunnum; // The user defined run number | |
50 | Int_t fEventnum; // The automatically updated event number | |
51 | Int_t fPrintfreq; // The user selected print frequency | |
52 | char* fFrame; // The Pythia frame indicator | |
53 | Float_t fWin; // The Pythia energy indicator | |
54 | Int_t fNucl; // Flag to denote nucleus-nucleus (1) or standard Pythia (0) running | |
55 | Int_t fZproj; // Z of the projectile particle | |
56 | Int_t fAproj; // A of the projectile particle | |
57 | Int_t fZtarg; // Z of the target particle | |
58 | Int_t fAtarg; // A of the target particle | |
59 | Float_t fFracpp; // Fraction of p+p collisions | |
60 | Float_t fFracnp; // Fraction of n+p collisions | |
61 | Float_t fFracpn; // Fraction of p+n collisions | |
62 | Float_t fFracnn; // Fraction of n+n collisions | |
63 | AliRandom fRan; // Random number generator | |
64 | AliEvent* fEvent; // The produced event structure | |
65 | Float_t fSpecpmin; // The minimal momentum for spectator tracks to be stored | |
66 | Int_t fUserctrl; // Flag to denote the user control selection w.r.t. MC parameters | |
67 | Int_t fElastic; // Flag to denote inclusion of elastic and difractive processes. | |
68 | ||
69 | TFile* fOutFile; // The user defined output data file | |
70 | TTree* fOutTree; // The standard ROOT output tree | |
71 | ||
72 | TArrayI* fSelections; // The particle KC codes for event selection | |
73 | Int_t fSelect; // Flag to indicate whether the total event is selected (1) or not (0) | |
74 | ||
75 | Int_t IsSelected(); // Check whether (sub)event passed the selection criteria | |
76 | void GetFractions(Float_t zp,Float_t ap,Float_t zt,Float_t at); // Determine various N-N collision fractions | |
77 | TString GetPyname(Int_t kf); // Provide the correctly truncated Pythia particle name for PDG code kf | |
78 | ||
79 | ClassDef(AliCollider,8) // Pythia based universal physics event generator | |
80 | }; | |
81 | #endif |