3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
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 ...)
16 // andreas.morsch@cern.ch
20 #include "AliPythia.h"
24 class AliGenPythiaEventHeader;
25 class AliGenEventHeader;
30 class AliGenPythia : public AliGenMC
34 typedef enum {kFlavorSelection, kParentSelection, kHeavyFlavor} StackFillOpt_t;
35 typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t;
36 typedef enum {kCluster, kCell} JetRecMode_t;
39 AliGenPythia(Int_t npart);
40 virtual ~AliGenPythia();
41 virtual void Generate();
43 // Range of events to be printed
44 virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
45 // Select process type
46 virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
47 virtual void SetTune(Int_t itune) {fItune = itune;}
48 virtual void SetSeed(UInt_t seed);
50 // Select structure function
51 virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;}
52 // Rewieght pt, hard spectrum with pT/p0^n, set power n
53 virtual void SetWeightPower(Float_t power = 0.) { fWeightPower = power; }
54 // Select pt of hard scattering
55 virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
56 {fPtHardMin = ptmin; fPtHardMax = ptmax; }
57 // y of hard scattering
58 virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
59 {fYHardMin = ymin; fYHardMax = ymax; }
60 // Set initial and final state gluon radiation
61 virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
62 {fGinit = iIn; fGfinal = iFin;}
63 virtual void SetColorReconnectionOff(Int_t iflag=0){fCRoff=iflag;}
65 virtual void SetPtKick(Float_t kt = 1.)
67 // Use the Pythia 6.3 new multiple interations scenario
68 virtual void UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;}
69 // Switch off heavy flavors
70 virtual void SwitchHFOff() {fHFoff = kTRUE;}
71 // Set centre of mass energy
72 virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
73 // Treat protons as inside nuclei with mass numbers a1 and a2
74 virtual void SetNuclei(Int_t a1, Int_t a2, Int_t pdfset = 0);
75 // Set colliding nuclei ("p","n",...)
76 virtual void SetCollisionSystem(TString projectile, TString target) { fProjectile = projectile; fTarget = target; }
77 virtual void SetNuclearPDF(Int_t pdf) {fNucPdf = pdf;}
78 virtual void SetUseNuclearPDF(Bool_t val) {fUseNuclearPDF = val;}
79 virtual void SetUseLorentzBoost(Bool_t val) {fUseLorentzBoost = val;}
83 // Energy range for jet trigger
84 virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
85 {fEtMinJet = etmin; fEtMaxJet = etmax;}
86 // Eta range for jet trigger
87 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
88 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
89 // Phi range for jet trigger
90 virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
91 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
92 // Jet reconstruction mode; default is cone algorithm
93 virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
94 // Eta range for gamma trigger
95 virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
96 {fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
97 // Phi range for gamma trigger
98 virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
99 {fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}
100 // Y range for heavy quark trigger
101 virtual void SetHeavyQuarkYRange(Float_t ymin=-20., Float_t ymax=20.){
102 fYMinHQ = ymin; fYMaxHQ=ymax; fUseYCutHQ=kTRUE;
105 // Select events with fragmentation photon, decay photon, pi0 or eta going to PHOS or EMCAL and central barrel
106 virtual Bool_t TriggerOnSelectedParticles(Int_t np);
108 virtual void SetCheckPHOS (Bool_t b) {fCheckPHOS = b;}
109 virtual void SetCheckEMCAL (Bool_t b) {fCheckEMCAL = b;}
110 virtual void SetCheckBarrel (Bool_t b) {fCheckBarrel = b;}
112 //virtual void SetElectronInEMCAL (Bool_t b) {fEleInEMCAL = b;}
113 //virtual void SetPhotonInPHOS (Bool_t b) {fCheckPHOS = b; fPhotonInCalo = b;} // Not in use
115 virtual void SetFragPhotonInCalo (Bool_t b) { fFragPhotonInCalo = b;}
116 virtual void SetFragPhotonInBarrel(Bool_t b) {fCheckBarrel = b; fFragPhotonInCalo = b;}
117 virtual void SetFragPhotonInEMCAL (Bool_t b) {fCheckEMCAL = b; fFragPhotonInCalo = b;}
118 virtual void SetFragPhotonInPHOS (Bool_t b) {fCheckPHOS = b; fFragPhotonInCalo = b;}
120 virtual void SetHadronInCalo (Bool_t b) { fHadronInCalo = b;}
121 virtual void SetHadronInBarrel (Bool_t b) {fCheckBarrel = b; fHadronInCalo = b;}
122 virtual void SetHadronInEMCAL (Bool_t b) {fCheckEMCAL = b; fHadronInCalo = b;}
123 virtual void SetHadronInPHOS (Bool_t b) {fCheckPHOS = b; fHadronInCalo = b;}
125 virtual void SetElectronInCalo (Bool_t b) { fEleInCalo = b;}
126 virtual void SetElectronInBarrel (Bool_t b) {fCheckBarrel = b; fEleInCalo = b;}
127 virtual void SetElectronInEMCAL (Bool_t b) {fCheckEMCAL = b; fEleInCalo = b;}
128 virtual void SetElectronInPHOS (Bool_t b) {fCheckPHOS = b; fEleInCalo = b;}
130 virtual void SetDecayPhotonInCalo (Bool_t d) {fDecayPhotonInCalo = d;}
131 virtual void SetDecayPhotonInBarrel(Bool_t d) {fDecayPhotonInCalo = d; fCheckBarrel = d;}
132 virtual void SetDecayPhotonInEMCAL(Bool_t d) {fDecayPhotonInCalo = d; fCheckEMCAL = d;}
133 virtual void SetDecayPhotonInPHOS (Bool_t d) {fDecayPhotonInCalo = d; fCheckPHOS = d;}
135 virtual void SetPi0InCalo (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f;}
136 virtual void SetPi0InBarrel (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel= b; }
137 virtual void SetPi0InEMCAL (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
138 virtual void SetPi0InPHOS (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
140 virtual void SetEtaInCalo (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f;}
141 virtual void SetEtaInBarrel (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel= b; }
142 virtual void SetEtaInEMCAL (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
143 virtual void SetEtaInPHOS (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
145 virtual void SetPi0PhotonDecayInBarrel(Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel = b; }
146 virtual void SetPi0PhotonDecayInEMCAL (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
147 virtual void SetPi0PhotonDecayInPHOS (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
149 virtual void SetEtaPhotonDecayInBarrel(Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel = b; }
150 virtual void SetEtaPhotonDecayInEMCAL (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
151 virtual void SetEtaPhotonDecayInPHOS (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
154 // Trigger on a minimum multiplicity
155 virtual void SetTriggerChargedMultiplicity(Int_t multiplicity, Float_t etamax = 0, Float_t ptmin = -1.)
156 {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEta = etamax;
157 fTriggerMultiplicityPtMin = ptmin;}
159 // Trigger on a minimum multiplicity for a given eta range
160 virtual void SetTriggerMultiplicityEtaRange(Int_t multiplicity, Float_t etamin = 0., Float_t etamax = 0., Float_t ptmin = -1.)
161 {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEtaMin = etamin; fTriggerMultiplicityEtaMax = etamax;
162 fTriggerMultiplicityPtMin = ptmin;}
164 // Calorimeters acceptance
165 // Set Phi in degrees, and Eta coverage, should not be negative
166 virtual void SetBarrelAcceptance(Float_t deta) {fTriggerEta = deta ;}
167 virtual void SetTriggerY(Float_t dy) {fTriggerY = dy;}
168 virtual void SetEMCALAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fEMCALMinPhi = phimin ; fEMCALMaxPhi = phimax ; fEMCALEta = deta ; }
169 virtual void SetPHOSAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fPHOSMinPhi = phimin ; fPHOSMaxPhi = phimax ; fPHOSEta = deta ; }
170 virtual void SetRotateParticleInPHOSeta(Bool_t b) {fCheckPHOSeta = b;}
172 virtual void SetTriggerParticleMinPt(Float_t pt) {fTriggerParticleMinPt = pt;}
173 // virtual void SetPhotonMinPt(Float_t pt) {fPhotonMinPt = pt;}
174 // virtual void SetElectronMinPt(Float_t pt) {fElectronMinPt = pt;}
175 // Trigger and rotate event
176 void RotatePhi(Bool_t& okdd);
178 // Trigger on a single particle (not related to calorimeter trigger above)
179 virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9, Float_t ptmin = -1, Float_t ptmax = 1000)
180 {fTriggerParticle = particle; fTriggerEta = etamax; fTriggerEtaMin = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}
181 virtual void SetTriggerParticle(Int_t particle, Float_t etamin, Float_t etamax, Float_t ptmin, Float_t ptmax)
182 {fTriggerParticle = particle; fTriggerEtaMin = etamin, fTriggerEta = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}
185 // Heavy flavor options
187 // Set option for feed down from higher family
188 virtual void SetFeedDownHigherFamily(Bool_t opt) {
191 // Set option for selecting particles kept in stack according to flavor
192 // or to parent selection
193 virtual void SetStackFillOpt(StackFillOpt_t opt) {
196 // Set fragmentation option
197 virtual void SetFragmentation(Bool_t opt) {
198 fFragmentation = opt;
201 virtual void SetCountMode(CountMode_t mode) {
207 // Set quenching mode 0 = no, 1 = AM, 2 = IL, 3 = NA, 4 = ACS
208 virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
209 // Set transport coefficient.
210 void SetQhat(Float_t qhat) {fQhat = qhat;}
211 //Set initial medium length.
212 void SetLength(Float_t length) {fLength = length;}
213 //set parameters for pyquen afterburner
214 virtual void SetPyquenPar(Float_t t0=1., Float_t tau0=0.1, Int_t nf=0,Int_t iengl=0, Int_t iangl=3)
215 {fpyquenT = t0; fpyquenTau = tau0; fpyquenNf=nf;fpyquenEloss=iengl;fpyquenAngle=iangl;}
216 virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
217 virtual void SetPatchOmegaDalitz(Int_t flag = 1) {fPatchOmegaDalitz = flag;}
218 virtual void SetDecayerExodus(Int_t flag = 1) {fDecayerExodus = flag;}
219 virtual void SetReadFromFile(const Text_t *filname) {fkFileName = filname; fReadFromFile = 1;}
220 virtual void SetReadLHEF(const Text_t *filename) {fkNameLHEF = filename; fReadLHEF = 1;}
225 // Get interaction rate for pileup studies
226 virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
227 virtual Float_t GetInteractionRate() const {return fInteractionRate;}
228 // get cross section of process
229 virtual Float_t GetXsection() const {return fXsection;}
230 // get triggered jets
231 void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
232 void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
233 void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
234 Float_t thresh = 0., Float_t etseed = 4.,
235 Float_t minet = 10., Float_t r = 1.);
237 void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
238 void LoadEvent(const TObjArray* stack, Int_t flag = 0, Int_t reHadr = 0);
240 virtual Process_t GetProcess() const {return fProcess;}
241 virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;}
242 virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const
243 {ptmin = fPtHardMin; ptmax = fPtHardMax;}
244 virtual void GetNuclei(Int_t& a1, Int_t& a2) const
245 {a1 = fAProjectile; a2 = fATarget;}
246 virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const
247 {etamin = fEtaMinJet; etamax = fEtaMaxJet;}
248 virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
249 {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180/TMath::Pi();}
250 virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
251 {etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
252 virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
253 {phimin = fPhiMinGamma*180./TMath::Pi(); phimax = fPhiMaxGamma*180./TMath::Pi();}
255 Bool_t CheckDetectorAcceptance(Float_t phi, Float_t eta, Int_t iparticle);
256 Bool_t IsInEMCAL (Float_t phi, Float_t eta) const;
257 Bool_t IsInPHOS (Float_t phi, Float_t eta, Int_t iparticle) ;
258 Bool_t IsInBarrel(Float_t eta) const;
259 Bool_t IsFromHeavyFlavor(Int_t ipart);
261 virtual void FinishRun();
262 Bool_t CheckTrigger(const TParticle* jet1, const TParticle* jet2);
263 //Used in some processes to selected child properties
264 Bool_t CheckKinematicsOnChild();
265 void GetSubEventTime();
267 void SetTuneForDiff(Bool_t a=kTRUE) {fkTuneForDiff=a;}
268 AliDecayer * GetDecayer(){return fDecayer;}
271 // adjust the weight from kinematic cuts
272 void AdjustWeights() const;
275 void GeneratePileup();
276 Process_t fProcess; //Process type
277 Int_t fItune; // Pythia tune > 6.4
278 StrucFunc_t fStrucFunc; //Structure Function
279 Float_t fKineBias; //!Bias from kinematic selection
280 Int_t fTrials; //!Number of trials for current event
281 Int_t fTrialsRun; //!Number of trials for run
283 Float_t fX1; //Mean x1
284 Float_t fX2; //Mean x2
285 Float_t fEventTime; //Time of the subevent
286 Float_t fInteractionRate; //Interaction rate (set by user)
287 Float_t fTimeWindow; //Time window for pileup events (set by user)
288 Int_t fCurSubEvent; //Index of the current sub-event
289 TArrayF *fEventsTime; //Subevents time for pileup
290 Int_t fNev; //Number of events
291 Int_t fFlavorSelect; //Heavy Flavor Selection
292 Float_t fXsection; //Cross-section
293 AliPythia *fPythia; //!Pythia
294 Float_t fWeightPower; //power for cross section weights; 0 means no reweighting
295 Float_t fPtHardMin; //lower pT-hard cut
296 Float_t fPtHardMax; //higher pT-hard cut
297 Float_t fYHardMin; //lower y-hard cut
298 Float_t fYHardMax; //higher y-hard cut
299 Int_t fGinit; //initial state gluon radiation
300 Int_t fGfinal; //final state gluon radiation
301 Int_t fCRoff; //color reconnection off in the pythia6 annealying model
302 Int_t fHadronisation; //hadronisation
303 Bool_t fPatchOmegaDalitz; //flag for omega dalitz decay patch
304 Bool_t fDecayerExodus; //flag for exodus decayer
305 Int_t fNpartons; //Number of partons before hadronisation
306 Int_t fReadFromFile; //read partons from file
307 Int_t fReadLHEF; //read lhef file
308 Int_t fQuench; //Flag for quenching
309 Float_t fQhat; //Transport coefficient (GeV^2/fm)
310 Float_t fLength; //Medium length (fm)
311 Float_t fpyquenT; //Pyquen initial temperature
312 Float_t fpyquenTau; //Pyquen initial proper time
313 Int_t fpyquenNf; //Pyquen number of flavours into the game
314 Int_t fpyquenEloss; //Pyquen type of energy loss
315 Int_t fpyquenAngle; //Pyquen radiation angle for gluons
316 Float_t fImpact; //Impact parameter for quenching simulation (q-pythia)
317 Float_t fPtKick; //Transverse momentum kick
318 Bool_t fFullEvent; //!Write Full event if true
319 AliDecayer *fDecayer; //!Pointer to the decayer instance
320 Int_t fDebugEventFirst; //!First event to debug
321 Int_t fDebugEventLast; //!Last event to debug
322 Float_t fEtMinJet; //Minimum et of triggered Jet
323 Float_t fEtMaxJet; //Maximum et of triggered Jet
324 Float_t fEtaMinJet; //Minimum eta of triggered Jet
325 Float_t fEtaMaxJet; //Maximum eta of triggered Jet
326 Float_t fPhiMinJet; //Minimum phi of triggered Jet
327 Float_t fPhiMaxJet; //Maximum phi of triggered Jet
328 Int_t fJetReconstruction; //Jet Reconstruction mode
329 Float_t fEtaMinGamma; // Minimum eta of triggered gamma
330 Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
331 Float_t fPhiMinGamma; // Minimum phi of triggered gamma
332 Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
333 Bool_t fUseYCutHQ; // siwtch for using y cut for heavy quarks
334 Float_t fYMinHQ; // Minimum y of triggered heavy quarks
335 Float_t fYMaxHQ; // Maximum y of triggered heavy quarks
336 Float_t fPycellEtaMax; // Max. eta for Pycell
337 Int_t fPycellNEta; // Number of eta bins for Pycell
338 Int_t fPycellNPhi; // Number of phi bins for Pycell
339 Float_t fPycellThreshold; // Pycell threshold
340 Float_t fPycellEtSeed; // Pycell seed
341 Float_t fPycellMinEtJet; // Pycell min. jet et
342 Float_t fPycellMaxRadius; // Pycell cone radius
343 StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
344 // that flavour or only with selected
345 // parents and their decays
346 Bool_t fFeedDownOpt; // Option to set feed down from higher
347 // quark families (e.g. b->c)
348 Bool_t fFragmentation; // Option to activate fragmentation by Pythia
349 Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
350 Bool_t fUseNuclearPDF; // flag if nuclear pdf should be applied
351 Bool_t fUseLorentzBoost; // flag if lorentz boost should be applied
352 Bool_t fNewMIS; // Flag for the new multipple interactions scenario
353 Bool_t fHFoff; // Flag for switching heafy flavor production off
354 Int_t fNucPdf; // Nuclear pdf 0: EKS98 1: EPS08
355 Int_t fTriggerParticle; // Trigger on this particle ...
356 Float_t fTriggerEta; // .. within |eta| < fTriggerEta
357 Float_t fTriggerY; // .. within |y| < fTriggerEta
358 Float_t fTriggerEtaMin; // .. within fTriggerEtaMin < eta < fTriggerEta
359 Float_t fTriggerMinPt; // .. within pt > fTriggerMinPt
360 Float_t fTriggerMaxPt; // .. within pt < fTriggerMaxPt
361 Int_t fTriggerMultiplicity; // Trigger on events with a minimum charged multiplicity
362 Float_t fTriggerMultiplicityEta; // in a given eta range
363 Float_t fTriggerMultiplicityEtaMin; // in a given eta min
364 Float_t fTriggerMultiplicityEtaMax; // in a given eta max
365 Float_t fTriggerMultiplicityPtMin; // above this pT
366 CountMode_t fCountMode; // Options for counting when the event will be finished.
367 // fCountMode = kCountAll --> All particles that end up in the
369 // fCountMode = kCountParents --> Only selected parents are counted
370 // fCountMode = kCountTrackabless --> Only particles flagged for tracking
375 AliGenPythiaEventHeader* fHeader; //! Event header
376 AliRunLoader* fRL; //! Run Loader
377 const Text_t* fkFileName; //! Name of file to read from
378 const Text_t* fkNameLHEF; //! Name of lhef file to read from
379 Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
380 Bool_t fHadronInCalo; // Option to ask for hadron (not pi0) in calorimeters acceptance
381 Bool_t fPi0InCalo; // Option to ask for Pi0 in calorimeters acceptance
382 Bool_t fEtaInCalo; // Option to ask for Eta in calorimeters acceptance
383 Bool_t fPhotonInCalo; // Option to ask for Photon in calorimeter acceptance (not in use)
384 Bool_t fDecayPhotonInCalo;// Option to ask for Decay Photon in calorimeter acceptance
385 Bool_t fForceNeutralMeson2PhotonDecay; // Option to ask for Pi0/Eta in calorimeters acceptance when decay into 2 photons
386 Bool_t fEleInCalo; // Option to ask for Electron in EMCAL acceptance
387 Bool_t fEleInEMCAL; // Option to ask for Electron in EMCAL acceptance (not in use)
388 Bool_t fCheckBarrel; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in central barrel acceptance
389 Bool_t fCheckEMCAL; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in calorimeters EMCAL acceptance
390 Bool_t fCheckPHOS; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in calorimeters PHOS acceptance
391 Bool_t fCheckPHOSeta; // Option to ask for rotate event particles in phi to have in PHOS acceptance a requested particle that previously had the good eta
392 Int_t fPHOSRotateCandidate; // Internal member to select the particle candidate to trigger the event phi rotation, to put it in PHOS phi acceptance
393 Float_t fTriggerParticleMinPt; // Minimum momentum of Fragmentation Photon or Pi0 or other hadron
394 Float_t fPhotonMinPt; // Minimum momentum of Photon (not in use)
395 Float_t fElectronMinPt; // Minimum momentum of Electron (not in use)
396 //Calorimeters eta-phi acceptance
397 Float_t fPHOSMinPhi; // Minimum phi PHOS, degrees
398 Float_t fPHOSMaxPhi; // Maximum phi PHOS, degrees
399 Float_t fPHOSEta; // Minimum eta PHOS, coverage delta eta
400 Float_t fEMCALMinPhi; // Minimum phi EMCAL, degrees
401 Float_t fEMCALMaxPhi; // Maximum phi EMCAL, degrees
402 Float_t fEMCALEta; // Maximum eta EMCAL, coverage delta eta
404 Bool_t fkTuneForDiff; // Pythia tune
407 AliGenPythia(const AliGenPythia &Pythia);
408 AliGenPythia & operator=(const AliGenPythia & rhs);
411 Bool_t CheckDiffraction();
412 Bool_t GetWeightsDiffraction(Double_t M, Double_t &Mmin, Double_t &Mmax,
413 Double_t &wSD, Double_t &wDD, Double_t &wND);
415 ClassDef(AliGenPythia, 15) // AliGenerator interface to Pythia