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8d2cd130 | 1 | #ifndef ALIGENPYTHIA_H |
2 | #define ALIGENPYTHIA_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
cf57b268 | 6 | |
8d2cd130 | 7 | /* $Id$ */ |
8 | ||
9 | // | |
10 | // Generator using the TPythia interface (via AliPythia) | |
11 | // to generate pp collisions. | |
12 | // Using SetNuclei() also nuclear modifications to the structure functions | |
13 | // can be taken into account. This makes, of course, only sense for the | |
14 | // generation of the products of hard processes (heavy flavor, jets ...) | |
15 | // | |
16 | // andreas.morsch@cern.ch | |
17 | // | |
18 | ||
19 | #include "AliGenMC.h" | |
20 | #include "AliPythia.h" | |
21 | ||
22 | class AliPythia; | |
23 | class TParticle; | |
e5c87a3d | 24 | class AliGenPythiaEventHeader; |
cf57b268 | 25 | class AliGenEventHeader; |
32d6ef7d | 26 | class AliStack; |
5fa4b20b | 27 | class AliRunLoader; |
1058d9df | 28 | class TObjArray; |
5fa4b20b | 29 | |
8d2cd130 | 30 | class AliGenPythia : public AliGenMC |
31 | { | |
32 | public: | |
33 | ||
34 | typedef enum {kFlavorSelection, kParentSelection} StackFillOpt_t; | |
35 | typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t; | |
36 | typedef enum {kCluster, kCell} JetRecMode_t; | |
37 | ||
38 | AliGenPythia(); | |
39 | AliGenPythia(Int_t npart); | |
8d2cd130 | 40 | virtual ~AliGenPythia(); |
41 | virtual void Generate(); | |
42 | virtual void Init(); | |
90a236ce | 43 | // Range of events to be printed |
8d2cd130 | 44 | virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1); |
90a236ce | 45 | // Select process type |
8d2cd130 | 46 | virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;} |
20e47f08 | 47 | |
90a236ce | 48 | // Select structure function |
fa49ba58 | 49 | virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;} |
90a236ce | 50 | // Select pt of hard scattering |
8d2cd130 | 51 | virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10) |
52 | {fPtHardMin = ptmin; fPtHardMax = ptmax; } | |
90a236ce | 53 | // y of hard scattering |
8d2cd130 | 54 | virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10) |
55 | {fYHardMin = ymin; fYHardMax = ymax; } | |
56 | // Set initial and final state gluon radiation | |
57 | virtual void SetGluonRadiation(Int_t iIn, Int_t iFin) | |
58 | {fGinit = iIn; fGfinal = iFin;} | |
90a236ce | 59 | // Intrinsic kT |
8d2cd130 | 60 | virtual void SetPtKick(Float_t kt = 1.) |
61 | {fPtKick = kt;} | |
beac474c | 62 | // Use the Pythia 6.3 new multiple interations scenario |
63 | virtual void UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;} | |
64 | // Switch off heavy flavors | |
65 | virtual void SwitchHFOff() {fHFoff = kTRUE;} | |
90a236ce | 66 | // Set centre of mass energy |
8d2cd130 | 67 | virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;} |
90a236ce | 68 | // Treat protons as inside nuclei with mass numbers a1 and a2 |
20e47f08 | 69 | virtual void SetNuclei(Int_t a1, Int_t a2, Int_t pdfset = 0); |
90a236ce | 70 | // |
71 | // Trigger options | |
72 | // | |
73 | // Energy range for jet trigger | |
8d2cd130 | 74 | virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4) |
75 | {fEtMinJet = etmin; fEtMaxJet = etmax;} | |
90a236ce | 76 | // Eta range for jet trigger |
8d2cd130 | 77 | virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.) |
78 | {fEtaMinJet = etamin; fEtaMaxJet = etamax;} | |
90a236ce | 79 | // Phi range for jet trigger |
8d2cd130 | 80 | virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.) |
81 | {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;} | |
90a236ce | 82 | // Jet reconstruction mode; default is cone algorithm |
83 | virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;} | |
84 | // Eta range for gamma trigger | |
8d2cd130 | 85 | virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.) |
86 | {fEtaMinGamma = etamin; fEtaMaxGamma = etamax;} | |
90a236ce | 87 | // Phi range for gamma trigger |
8d2cd130 | 88 | virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.) |
89 | {fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;} | |
9fd8e520 | 90 | // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL |
90a236ce | 91 | virtual void SetFragPhotonInCalo(Bool_t b) {fFragPhotonInCalo = b;} |
92 | virtual void SetPi0InCalo (Bool_t b) {fPi0InCalo = b;} | |
93 | virtual void SetPhotonInCalo(Bool_t b) {fPhotonInCalo = b;} | |
94 | virtual void SetCheckPHOS (Bool_t b) {fCheckPHOS = b;} | |
95 | virtual void SetCheckEMCAL(Bool_t b) {fCheckEMCAL = b;} | |
96 | virtual void SetFragPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fFragPhotonInCalo = b;} | |
97 | virtual void SetFragPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fFragPhotonInCalo = b;} | |
98 | virtual void SetPi0InEMCAL(Bool_t b) {fCheckEMCAL = b; fPi0InCalo = b;} | |
99 | virtual void SetPi0InPHOS(Bool_t b) {fCheckPHOS = b; fPi0InCalo = b;} | |
100 | virtual void SetPhotonInEMCAL(Bool_t b) {fCheckEMCAL = b; fPhotonInCalo = b;} | |
101 | virtual void SetPhotonInPHOS(Bool_t b) {fCheckPHOS = b; fPhotonInCalo = b;} | |
700b9416 | 102 | |
103 | // Trigger on a minimum multiplicity | |
104 | virtual void SetTriggerChargedMultiplicity(Int_t multiplicity, Float_t etamax = 0) {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEta = etamax; } | |
105 | ||
90a236ce | 106 | virtual void SetPhotonInPHOSeta(Bool_t b) {fCheckPHOSeta = b; fPhotonInCalo = b;} |
107 | virtual void SetFragPhotonOrPi0MinPt(Float_t pt) {fFragPhotonOrPi0MinPt = pt;} | |
108 | virtual void SetPhotonMinPt(Float_t pt) {fPhotonMinPt = pt;} | |
109 | // Trigger and rotate event | |
110 | void RotatePhi(Int_t iphcand, Bool_t& okdd); | |
111 | // Trigger on a single particle | |
7ce1321b | 112 | virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9) |
113 | {fTriggerParticle = particle; fTriggerEta = etamax;} | |
90a236ce | 114 | // |
115 | // Heavy flavor options | |
116 | // | |
8d2cd130 | 117 | // Set option for feed down from higher family |
118 | virtual void SetFeedDownHigherFamily(Bool_t opt) { | |
90a236ce | 119 | fFeedDownOpt = opt; |
8d2cd130 | 120 | } |
121 | // Set option for selecting particles kept in stack according to flavor | |
122 | // or to parent selection | |
123 | virtual void SetStackFillOpt(StackFillOpt_t opt) { | |
90a236ce | 124 | fStackFillOpt = opt; |
8d2cd130 | 125 | } |
126 | // Set fragmentation option | |
c125238c | 127 | virtual void SetFragmentation(Bool_t opt) { |
90a236ce | 128 | fFragmentation = opt; |
8d2cd130 | 129 | } |
130 | // Set counting mode | |
c125238c | 131 | virtual void SetCountMode(CountMode_t mode) { |
90a236ce | 132 | fCountMode = mode; |
8d2cd130 | 133 | } |
90a236ce | 134 | // |
135 | // Quenching | |
136 | // | |
cd07c39b | 137 | // Set quenching mode 0 = no, 1 = AM, 2 = IL, 3 = NA, 4 = ACS |
7ea3ea5b | 138 | virtual void SetQuench(Int_t flag = 0) {fQuench = flag;} |
cd07c39b | 139 | // Set transport coefficient. |
140 | void SetQhat(Float_t qhat) {fQhat = qhat;} | |
141 | //Set initial medium length. | |
142 | void SetLength(Float_t length) {fLength = length;} | |
143 | ||
5fa4b20b | 144 | virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;} |
145 | virtual void SetReadFromFile(const Text_t *filname) {fFileName = filname; fReadFromFile = 1;} | |
90a236ce | 146 | |
147 | // | |
148 | // Pile-up | |
149 | // | |
150 | // Get interaction rate for pileup studies | |
9d7108a7 | 151 | virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6); |
152 | virtual Float_t GetInteractionRate() const {return fInteractionRate;} | |
8d2cd130 | 153 | // get cross section of process |
154 | virtual Float_t GetXsection() const {return fXsection;} | |
155 | // get triggered jets | |
7184e472 | 156 | void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]); |
014a9521 | 157 | void RecJetsUA1(Int_t& njets, Float_t jets[4][50]); |
592f8307 | 158 | void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432, |
159 | Float_t thresh = 0., Float_t etseed = 4., | |
160 | Float_t minet = 10., Float_t r = 1.); | |
161 | ||
1058d9df | 162 | void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0); |
163 | void LoadEvent(TObjArray* stack, Int_t flag = 0, Int_t reHadr = 0); | |
8d2cd130 | 164 | // Getters |
7184e472 | 165 | virtual Process_t GetProcess() const {return fProcess;} |
166 | virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;} | |
167 | virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const | |
35346e8d | 168 | {ptmin = fPtHardMin; ptmax = fPtHardMax;} |
7184e472 | 169 | virtual void GetNuclei(Int_t& a1, Int_t& a2) const |
1a626d4e | 170 | {a1 = fAProjectile; a2 = fATarget;} |
7184e472 | 171 | virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const |
8d2cd130 | 172 | {etamin = fEtaMinJet; etamax = fEtaMaxJet;} |
7184e472 | 173 | virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const |
8d2cd130 | 174 | {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180/TMath::Pi();} |
7184e472 | 175 | virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const |
8d2cd130 | 176 | {etamin = fEtaMinGamma; etamax = fEtaMaxGamma;} |
7184e472 | 177 | virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const |
8d2cd130 | 178 | {phimin = fPhiMinGamma*180./TMath::Pi(); phimax = fPhiMaxGamma*180./TMath::Pi();} |
179 | // | |
ec2c406e | 180 | Bool_t IsInEMCAL(Float_t phi, Float_t eta); |
181 | Bool_t IsInPHOS(Float_t phi, Float_t eta); | |
182 | // | |
8d2cd130 | 183 | virtual void FinishRun(); |
184 | Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2); | |
0f6ee828 | 185 | //Used in some processes to selected child properties |
aea21c57 | 186 | Bool_t CheckKinematicsOnChild(); |
9d7108a7 | 187 | void GetSubEventTime(); |
dbd64db6 | 188 | |
8d2cd130 | 189 | protected: |
190 | // adjust the weight from kinematic cuts | |
7184e472 | 191 | void AdjustWeights() const; |
f913ec4f | 192 | Int_t GenerateMB(); |
193 | void MakeHeader(); | |
9d7108a7 | 194 | void GeneratePileup(); |
8d2cd130 | 195 | Process_t fProcess; //Process type |
196 | StrucFunc_t fStrucFunc; //Structure Function | |
8d2cd130 | 197 | Float_t fKineBias; //!Bias from kinematic selection |
198 | Int_t fTrials; //!Number of trials for current event | |
199 | Int_t fTrialsRun; //!Number of trials for run | |
200 | Float_t fQ; //Mean Q | |
201 | Float_t fX1; //Mean x1 | |
202 | Float_t fX2; //Mean x2 | |
f913ec4f | 203 | Float_t fEventTime; //Time of the subevent |
204 | Float_t fInteractionRate; //Interaction rate (set by user) | |
9d7108a7 | 205 | Float_t fTimeWindow; //Time window for pileup events (set by user) |
206 | Int_t fCurSubEvent; //Index of the current sub-event | |
207 | TArrayF *fEventsTime; //Subevents time for pileup | |
8d2cd130 | 208 | Int_t fNev; //Number of events |
209 | Int_t fFlavorSelect; //Heavy Flavor Selection | |
210 | Float_t fXsection; //Cross-section | |
211 | AliPythia *fPythia; //!Pythia | |
212 | Float_t fPtHardMin; //lower pT-hard cut | |
213 | Float_t fPtHardMax; //higher pT-hard cut | |
214 | Float_t fYHardMin; //lower y-hard cut | |
215 | Float_t fYHardMax; //higher y-hard cut | |
8d2cd130 | 216 | Int_t fGinit; //initial state gluon radiation |
217 | Int_t fGfinal; //final state gluon radiation | |
5fa4b20b | 218 | Int_t fHadronisation; //hadronisation |
219 | Int_t fNpartons; //Number of partons before hadronisation | |
220 | Int_t fReadFromFile; //read partons from file | |
7ea3ea5b | 221 | Int_t fQuench; //Flag for quenching |
cd07c39b | 222 | Float_t fQhat; //Transport coefficient (GeV^2/fm) |
223 | Float_t fLength; //Medium length (fm) | |
8d2cd130 | 224 | Float_t fPtKick; //Transverse momentum kick |
225 | Bool_t fFullEvent; //!Write Full event if true | |
226 | AliDecayer *fDecayer; //!Pointer to the decayer instance | |
227 | Int_t fDebugEventFirst; //!First event to debug | |
228 | Int_t fDebugEventLast; //!Last event to debug | |
229 | Float_t fEtMinJet; //Minimum et of triggered Jet | |
230 | Float_t fEtMaxJet; //Maximum et of triggered Jet | |
231 | Float_t fEtaMinJet; //Minimum eta of triggered Jet | |
232 | Float_t fEtaMaxJet; //Maximum eta of triggered Jet | |
233 | Float_t fPhiMinJet; //Minimum phi of triggered Jet | |
234 | Float_t fPhiMaxJet; //Maximum phi of triggered Jet | |
235 | Int_t fJetReconstruction; //Jet Reconstruction mode | |
236 | Float_t fEtaMinGamma; // Minimum eta of triggered gamma | |
237 | Float_t fEtaMaxGamma; // Maximum eta of triggered gamma | |
238 | Float_t fPhiMinGamma; // Minimum phi of triggered gamma | |
239 | Float_t fPhiMaxGamma; // Maximum phi of triggered gamma | |
592f8307 | 240 | Float_t fPycellEtaMax; // Max. eta for Pycell |
241 | Int_t fPycellNEta; // Number of eta bins for Pycell | |
242 | Int_t fPycellNPhi; // Number of phi bins for Pycell | |
243 | Float_t fPycellThreshold; // Pycell threshold | |
244 | Float_t fPycellEtSeed; // Pycell seed | |
245 | Float_t fPycellMinEtJet; // Pycell min. jet et | |
246 | Float_t fPycellMaxRadius; // Pycell cone radius | |
8d2cd130 | 247 | StackFillOpt_t fStackFillOpt; // Stack filling with all particles with |
248 | // that flavour or only with selected | |
249 | // parents and their decays | |
250 | Bool_t fFeedDownOpt; // Option to set feed down from higher | |
251 | // quark families (e.g. b->c) | |
90a236ce | 252 | Bool_t fFragmentation; // Option to activate fragmentation by Pythia |
253 | Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called | |
254 | Bool_t fNewMIS; // Flag for the new multipple interactions scenario | |
255 | Bool_t fHFoff; // Flag for switching heafy flavor production off | |
20e47f08 | 256 | Int_t fNucPdf; // Nuclear pdf 0: EKS98 1: EPS08 |
90a236ce | 257 | Int_t fTriggerParticle; // Trigger on this particle ... |
258 | Float_t fTriggerEta; // .. within |eta| < fTriggerEta | |
700b9416 | 259 | Int_t fTriggerMultiplicity; // Trigger on events with a minimum charged multiplicity |
260 | Float_t fTriggerMultiplicityEta; // in a given eta range | |
90a236ce | 261 | CountMode_t fCountMode; // Options for counting when the event will be finished. |
8d2cd130 | 262 | // fCountMode = kCountAll --> All particles that end up in the |
263 | // stack are counted | |
264 | // fCountMode = kCountParents --> Only selected parents are counted | |
265 | // fCountMode = kCountTrackabless --> Only particles flagged for tracking | |
266 | // are counted | |
267 | // | |
90a236ce | 268 | // |
269 | ||
270 | AliGenPythiaEventHeader* fHeader; //! Event header | |
271 | AliRunLoader* fRL; //! Run Loader | |
272 | const Text_t* fFileName; //! Name of file to read from | |
273 | ||
ec2c406e | 274 | |
90a236ce | 275 | Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance |
276 | Bool_t fPi0InCalo; // Option to ask for Pi0 in calorimeters acceptance | |
277 | Bool_t fPhotonInCalo; // Option to ask for Decay Photon in calorimeter acceptance | |
278 | Bool_t fCheckEMCAL; // Option to ask for FragPhoton or Pi0 in calorimeters EMCAL acceptance | |
279 | Bool_t fCheckPHOS; // Option to ask for FragPhoton or Pi0 in calorimeters PHOS acceptance | |
280 | Bool_t fCheckPHOSeta; // Option to ask for PHOS eta acceptance | |
281 | Float_t fFragPhotonOrPi0MinPt; // Minimum momentum of Fragmentation Photon or Pi0 | |
282 | Float_t fPhotonMinPt; // Minimum momentum of Photon | |
ec2c406e | 283 | //Calorimeters eta-phi acceptance |
90a236ce | 284 | Float_t fPHOSMinPhi; // Minimum phi PHOS |
285 | Float_t fPHOSMaxPhi; // Maximum phi PHOS | |
286 | Float_t fPHOSEta; // Minimum eta PHOS | |
287 | Float_t fEMCALMinPhi; // Minimum phi EMCAL | |
288 | Float_t fEMCALMaxPhi; // Maximum phi EMCAL | |
289 | Float_t fEMCALEta; // Maximum eta EMCAL | |
ec2c406e | 290 | |
93a2041b | 291 | private: |
292 | AliGenPythia(const AliGenPythia &Pythia); | |
293 | AliGenPythia & operator=(const AliGenPythia & rhs); | |
294 | ||
fc7e1b1c | 295 | ClassDef(AliGenPythia,8) // AliGenerator interface to Pythia |
8d2cd130 | 296 | }; |
297 | #endif | |
298 | ||
299 | ||
300 | ||
301 | ||
302 |