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;}
49 // Select structure function
50 virtual void SetStrucFunc(StrucFunc_t func = kCTEQ5L) {fStrucFunc = func;}
51 // Select pt of hard scattering
52 virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
53 {fPtHardMin = ptmin; fPtHardMax = ptmax; }
54 // y of hard scattering
55 virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
56 {fYHardMin = ymin; fYHardMax = ymax; }
57 // Set initial and final state gluon radiation
58 virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
59 {fGinit = iIn; fGfinal = iFin;}
60 virtual void SetColorReconnectionOff(Int_t iflag=0){fCRoff=iflag;}
62 virtual void SetPtKick(Float_t kt = 1.)
64 // Use the Pythia 6.3 new multiple interations scenario
65 virtual void UseNewMultipleInteractionsScenario() {fNewMIS = kTRUE;}
66 // Switch off heavy flavors
67 virtual void SwitchHFOff() {fHFoff = kTRUE;}
68 // Set centre of mass energy
69 virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
70 // Treat protons as inside nuclei with mass numbers a1 and a2
71 virtual void SetNuclei(Int_t a1, Int_t a2, Int_t pdfset = 0);
72 // Set colliding nuclei ("p","n",...)
73 virtual void SetCollisionSystem(TString projectile, TString target) { fProjectile = projectile; fTarget = target; }
74 virtual void SetNuclearPDF(Int_t pdf) {fNucPdf = pdf;}
75 virtual void SetUseNuclearPDF(Bool_t val) {fUseNuclearPDF = val;}
76 virtual void SetUseLorentzBoost(Bool_t val) {fUseLorentzBoost = val;}
80 // Energy range for jet trigger
81 virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
82 {fEtMinJet = etmin; fEtMaxJet = etmax;}
83 // Eta range for jet trigger
84 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
85 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
86 // Phi range for jet trigger
87 virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
88 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
89 // Jet reconstruction mode; default is cone algorithm
90 virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
91 // Eta range for gamma trigger
92 virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
93 {fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
94 // Phi range for gamma trigger
95 virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
96 {fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}
98 // Select events with fragmentation photon, decay photon, pi0 or eta going to PHOS or EMCAL and central barrel
99 virtual Bool_t TriggerOnSelectedParticles(Int_t np);
101 virtual void SetCheckPHOS (Bool_t b) {fCheckPHOS = b;}
102 virtual void SetCheckEMCAL (Bool_t b) {fCheckEMCAL = b;}
103 virtual void SetCheckBarrel (Bool_t b) {fCheckBarrel = b;}
105 //virtual void SetElectronInEMCAL (Bool_t b) {fEleInEMCAL = b;}
106 //virtual void SetPhotonInPHOS (Bool_t b) {fCheckPHOS = b; fPhotonInCalo = b;} // Not in use
108 virtual void SetFragPhotonInCalo (Bool_t b) { fFragPhotonInCalo = b;}
109 virtual void SetFragPhotonInBarrel(Bool_t b) {fCheckBarrel = b; fFragPhotonInCalo = b;}
110 virtual void SetFragPhotonInEMCAL (Bool_t b) {fCheckEMCAL = b; fFragPhotonInCalo = b;}
111 virtual void SetFragPhotonInPHOS (Bool_t b) {fCheckPHOS = b; fFragPhotonInCalo = b;}
113 virtual void SetHadronInCalo (Bool_t b) { fHadronInCalo = b;}
114 virtual void SetHadronInBarrel (Bool_t b) {fCheckBarrel = b; fHadronInCalo = b;}
115 virtual void SetHadronInEMCAL (Bool_t b) {fCheckEMCAL = b; fHadronInCalo = b;}
116 virtual void SetHadronInPHOS (Bool_t b) {fCheckPHOS = b; fHadronInCalo = b;}
118 virtual void SetElectronInCalo (Bool_t b) { fEleInCalo = b;}
119 virtual void SetElectronInBarrel (Bool_t b) {fCheckBarrel = b; fEleInCalo = b;}
120 virtual void SetElectronInEMCAL (Bool_t b) {fCheckEMCAL = b; fEleInCalo = b;}
121 virtual void SetElectronInPHOS (Bool_t b) {fCheckPHOS = b; fEleInCalo = b;}
123 virtual void SetDecayPhotonInCalo (Bool_t d) {fDecayPhotonInCalo = d;}
124 virtual void SetDecayPhotonInBarrel(Bool_t d) {fDecayPhotonInCalo = d; fCheckBarrel = d;}
125 virtual void SetDecayPhotonInEMCAL(Bool_t d) {fDecayPhotonInCalo = d; fCheckEMCAL = d;}
126 virtual void SetDecayPhotonInPHOS (Bool_t d) {fDecayPhotonInCalo = d; fCheckPHOS = d;}
128 virtual void SetPi0InCalo (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f;}
129 virtual void SetPi0InBarrel (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel= b; }
130 virtual void SetPi0InEMCAL (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
131 virtual void SetPi0InPHOS (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
133 virtual void SetEtaInCalo (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f;}
134 virtual void SetEtaInBarrel (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel= b; }
135 virtual void SetEtaInEMCAL (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
136 virtual void SetEtaInPHOS (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
138 virtual void SetPi0PhotonDecayInBarrel(Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel = b; }
139 virtual void SetPi0PhotonDecayInEMCAL (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
140 virtual void SetPi0PhotonDecayInPHOS (Bool_t b, Bool_t f = kFALSE) {fPi0InCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
142 virtual void SetEtaPhotonDecayInBarrel(Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckBarrel = b; }
143 virtual void SetEtaPhotonDecayInEMCAL (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckEMCAL = b; }
144 virtual void SetEtaPhotonDecayInPHOS (Bool_t b, Bool_t f = kFALSE) {fEtaInCalo = b; fDecayPhotonInCalo = b; fForceNeutralMeson2PhotonDecay = f; fCheckPHOS = b; }
147 // Trigger on a minimum multiplicity
148 virtual void SetTriggerChargedMultiplicity(Int_t multiplicity, Float_t etamax = 0, Float_t ptmin = -1.)
149 {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEta = etamax;
150 fTriggerMultiplicityPtMin = ptmin;}
152 // Trigger on a minimum multiplicity for a given eta range
153 virtual void SetTriggerMultiplicityEtaRange(Int_t multiplicity, Float_t etamin = 0., Float_t etamax = 0., Float_t ptmin = -1.)
154 {fTriggerMultiplicity = multiplicity; fTriggerMultiplicityEtaMin = etamin; fTriggerMultiplicityEtaMax = etamax;
155 fTriggerMultiplicityPtMin = ptmin;}
157 // Calorimeters acceptance
158 // Set Phi in degrees, and Eta coverage, should not be negative
159 virtual void SetBarrelAcceptance(Float_t deta) {fTriggerEta = deta ;}
160 virtual void SetTriggerY(Float_t dy) {fTriggerY = dy;}
161 virtual void SetEMCALAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fEMCALMinPhi = phimin ; fEMCALMaxPhi = phimax ; fEMCALEta = deta ; }
162 virtual void SetPHOSAcceptance (Float_t phimin, Float_t phimax, Float_t deta) {fPHOSMinPhi = phimin ; fPHOSMaxPhi = phimax ; fPHOSEta = deta ; }
163 virtual void SetRotateParticleInPHOSeta(Bool_t b) {fCheckPHOSeta = b;}
165 virtual void SetTriggerParticleMinPt(Float_t pt) {fTriggerParticleMinPt = pt;}
166 // virtual void SetPhotonMinPt(Float_t pt) {fPhotonMinPt = pt;}
167 // virtual void SetElectronMinPt(Float_t pt) {fElectronMinPt = pt;}
168 // Trigger and rotate event
169 void RotatePhi(Bool_t& okdd);
171 // Trigger on a single particle (not related to calorimeter trigger above)
172 virtual void SetTriggerParticle(Int_t particle = 0, Float_t etamax = 0.9, Float_t ptmin = -1, Float_t ptmax = 1000)
173 {fTriggerParticle = particle; fTriggerEta = etamax; fTriggerEtaMin = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}
174 virtual void SetTriggerParticle(Int_t particle, Float_t etamin, Float_t etamax, Float_t ptmin, Float_t ptmax)
175 {fTriggerParticle = particle; fTriggerEtaMin = etamin, fTriggerEta = etamax; fTriggerMinPt = ptmin; fTriggerMaxPt = ptmax;}
178 // Heavy flavor options
180 // Set option for feed down from higher family
181 virtual void SetFeedDownHigherFamily(Bool_t opt) {
184 // Set option for selecting particles kept in stack according to flavor
185 // or to parent selection
186 virtual void SetStackFillOpt(StackFillOpt_t opt) {
189 // Set fragmentation option
190 virtual void SetFragmentation(Bool_t opt) {
191 fFragmentation = opt;
194 virtual void SetCountMode(CountMode_t mode) {
200 // Set quenching mode 0 = no, 1 = AM, 2 = IL, 3 = NA, 4 = ACS
201 virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
202 // Set transport coefficient.
203 void SetQhat(Float_t qhat) {fQhat = qhat;}
204 //Set initial medium length.
205 void SetLength(Float_t length) {fLength = length;}
206 //set parameters for pyquen afterburner
207 virtual void SetPyquenPar(Float_t t0=1., Float_t tau0=0.1, Int_t nf=0,Int_t iengl=0, Int_t iangl=3)
208 {fpyquenT = t0; fpyquenTau = tau0; fpyquenNf=nf;fpyquenEloss=iengl;fpyquenAngle=iangl;}
209 virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
210 virtual void SetPatchOmegaDalitz(Int_t flag = 1) {fPatchOmegaDalitz = flag;}
211 virtual void SetDecayerExodus(Int_t flag = 1) {fDecayerExodus = flag;}
212 virtual void SetReadFromFile(const Text_t *filname) {fkFileName = filname; fReadFromFile = 1;}
213 virtual void SetReadLHEF(const Text_t *filename) {fkNameLHEF = filename; fReadLHEF = 1;}
218 // Get interaction rate for pileup studies
219 virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
220 virtual Float_t GetInteractionRate() const {return fInteractionRate;}
221 // get cross section of process
222 virtual Float_t GetXsection() const {return fXsection;}
223 // get triggered jets
224 void GetJets(Int_t& njets, Int_t& ntrig, Float_t jets[4][10]);
225 void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
226 void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
227 Float_t thresh = 0., Float_t etseed = 4.,
228 Float_t minet = 10., Float_t r = 1.);
230 void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
231 void LoadEvent(const TObjArray* stack, Int_t flag = 0, Int_t reHadr = 0);
233 virtual Process_t GetProcess() const {return fProcess;}
234 virtual StrucFunc_t GetStrucFunc() const {return fStrucFunc;}
235 virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax) const
236 {ptmin = fPtHardMin; ptmax = fPtHardMax;}
237 virtual void GetNuclei(Int_t& a1, Int_t& a2) const
238 {a1 = fAProjectile; a2 = fATarget;}
239 virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax) const
240 {etamin = fEtaMinJet; etamax = fEtaMaxJet;}
241 virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
242 {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180/TMath::Pi();}
243 virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax) const
244 {etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
245 virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax) const
246 {phimin = fPhiMinGamma*180./TMath::Pi(); phimax = fPhiMaxGamma*180./TMath::Pi();}
248 Bool_t CheckDetectorAcceptance(Float_t phi, Float_t eta, Int_t iparticle);
249 Bool_t IsInEMCAL (Float_t phi, Float_t eta) const;
250 Bool_t IsInPHOS (Float_t phi, Float_t eta, Int_t iparticle) ;
251 Bool_t IsInBarrel(Float_t eta) const;
252 Bool_t IsFromHeavyFlavor(Int_t ipart);
254 virtual void FinishRun();
255 Bool_t CheckTrigger(const TParticle* jet1, const TParticle* jet2);
256 //Used in some processes to selected child properties
257 Bool_t CheckKinematicsOnChild();
258 void GetSubEventTime();
260 void SetTuneForDiff(Bool_t a=kTRUE) {fkTuneForDiff=a;}
261 AliDecayer * GetDecayer(){return fDecayer;}
264 // adjust the weight from kinematic cuts
265 void AdjustWeights() const;
268 void GeneratePileup();
269 Process_t fProcess; //Process type
270 Int_t fItune; // Pythia tune > 6.4
271 StrucFunc_t fStrucFunc; //Structure Function
272 Float_t fKineBias; //!Bias from kinematic selection
273 Int_t fTrials; //!Number of trials for current event
274 Int_t fTrialsRun; //!Number of trials for run
276 Float_t fX1; //Mean x1
277 Float_t fX2; //Mean x2
278 Float_t fEventTime; //Time of the subevent
279 Float_t fInteractionRate; //Interaction rate (set by user)
280 Float_t fTimeWindow; //Time window for pileup events (set by user)
281 Int_t fCurSubEvent; //Index of the current sub-event
282 TArrayF *fEventsTime; //Subevents time for pileup
283 Int_t fNev; //Number of events
284 Int_t fFlavorSelect; //Heavy Flavor Selection
285 Float_t fXsection; //Cross-section
286 AliPythia *fPythia; //!Pythia
287 Float_t fPtHardMin; //lower pT-hard cut
288 Float_t fPtHardMax; //higher pT-hard cut
289 Float_t fYHardMin; //lower y-hard cut
290 Float_t fYHardMax; //higher y-hard cut
291 Int_t fGinit; //initial state gluon radiation
292 Int_t fGfinal; //final state gluon radiation
293 Int_t fCRoff; //color reconnection off in the pythia6 annealying model
294 Int_t fHadronisation; //hadronisation
295 Bool_t fPatchOmegaDalitz; //flag for omega dalitz decay patch
296 Bool_t fDecayerExodus; //flag for exodus decayer
297 Int_t fNpartons; //Number of partons before hadronisation
298 Int_t fReadFromFile; //read partons from file
299 Int_t fReadLHEF; //read lhef file
300 Int_t fQuench; //Flag for quenching
301 Float_t fQhat; //Transport coefficient (GeV^2/fm)
302 Float_t fLength; //Medium length (fm)
303 Float_t fpyquenT; //Pyquen initial temperature
304 Float_t fpyquenTau; //Pyquen initial proper time
305 Int_t fpyquenNf; //Pyquen number of flavours into the game
306 Int_t fpyquenEloss; //Pyquen type of energy loss
307 Int_t fpyquenAngle; //Pyquen radiation angle for gluons
308 Float_t fImpact; //Impact parameter for quenching simulation (q-pythia)
309 Float_t fPtKick; //Transverse momentum kick
310 Bool_t fFullEvent; //!Write Full event if true
311 AliDecayer *fDecayer; //!Pointer to the decayer instance
312 Int_t fDebugEventFirst; //!First event to debug
313 Int_t fDebugEventLast; //!Last event to debug
314 Float_t fEtMinJet; //Minimum et of triggered Jet
315 Float_t fEtMaxJet; //Maximum et of triggered Jet
316 Float_t fEtaMinJet; //Minimum eta of triggered Jet
317 Float_t fEtaMaxJet; //Maximum eta of triggered Jet
318 Float_t fPhiMinJet; //Minimum phi of triggered Jet
319 Float_t fPhiMaxJet; //Maximum phi of triggered Jet
320 Int_t fJetReconstruction; //Jet Reconstruction mode
321 Float_t fEtaMinGamma; // Minimum eta of triggered gamma
322 Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
323 Float_t fPhiMinGamma; // Minimum phi of triggered gamma
324 Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
325 Float_t fPycellEtaMax; // Max. eta for Pycell
326 Int_t fPycellNEta; // Number of eta bins for Pycell
327 Int_t fPycellNPhi; // Number of phi bins for Pycell
328 Float_t fPycellThreshold; // Pycell threshold
329 Float_t fPycellEtSeed; // Pycell seed
330 Float_t fPycellMinEtJet; // Pycell min. jet et
331 Float_t fPycellMaxRadius; // Pycell cone radius
332 StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
333 // that flavour or only with selected
334 // parents and their decays
335 Bool_t fFeedDownOpt; // Option to set feed down from higher
336 // quark families (e.g. b->c)
337 Bool_t fFragmentation; // Option to activate fragmentation by Pythia
338 Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
339 Bool_t fUseNuclearPDF; // flag if nuclear pdf should be applied
340 Bool_t fUseLorentzBoost; // flag if lorentz boost should be applied
341 Bool_t fNewMIS; // Flag for the new multipple interactions scenario
342 Bool_t fHFoff; // Flag for switching heafy flavor production off
343 Int_t fNucPdf; // Nuclear pdf 0: EKS98 1: EPS08
344 Int_t fTriggerParticle; // Trigger on this particle ...
345 Float_t fTriggerEta; // .. within |eta| < fTriggerEta
346 Float_t fTriggerY; // .. within |y| < fTriggerEta
347 Float_t fTriggerEtaMin; // .. within fTriggerEtaMin < eta < fTriggerEta
348 Float_t fTriggerMinPt; // .. within pt > fTriggerMinPt
349 Float_t fTriggerMaxPt; // .. within pt < fTriggerMaxPt
350 Int_t fTriggerMultiplicity; // Trigger on events with a minimum charged multiplicity
351 Float_t fTriggerMultiplicityEta; // in a given eta range
352 Float_t fTriggerMultiplicityEtaMin; // in a given eta min
353 Float_t fTriggerMultiplicityEtaMax; // in a given eta max
354 Float_t fTriggerMultiplicityPtMin; // above this pT
355 CountMode_t fCountMode; // Options for counting when the event will be finished.
356 // fCountMode = kCountAll --> All particles that end up in the
358 // fCountMode = kCountParents --> Only selected parents are counted
359 // fCountMode = kCountTrackabless --> Only particles flagged for tracking
364 AliGenPythiaEventHeader* fHeader; //! Event header
365 AliRunLoader* fRL; //! Run Loader
366 const Text_t* fkFileName; //! Name of file to read from
367 const Text_t* fkNameLHEF; //! Name of lhef file to read from
368 Bool_t fFragPhotonInCalo; // Option to ask for Fragmentation Photon in calorimeters acceptance
369 Bool_t fHadronInCalo; // Option to ask for hadron (not pi0) in calorimeters acceptance
370 Bool_t fPi0InCalo; // Option to ask for Pi0 in calorimeters acceptance
371 Bool_t fEtaInCalo; // Option to ask for Eta in calorimeters acceptance
372 Bool_t fPhotonInCalo; // Option to ask for Photon in calorimeter acceptance (not in use)
373 Bool_t fDecayPhotonInCalo;// Option to ask for Decay Photon in calorimeter acceptance
374 Bool_t fForceNeutralMeson2PhotonDecay; // Option to ask for Pi0/Eta in calorimeters acceptance when decay into 2 photons
375 Bool_t fEleInCalo; // Option to ask for Electron in EMCAL acceptance
376 Bool_t fEleInEMCAL; // Option to ask for Electron in EMCAL acceptance (not in use)
377 Bool_t fCheckBarrel; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in central barrel acceptance
378 Bool_t fCheckEMCAL; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in calorimeters EMCAL acceptance
379 Bool_t fCheckPHOS; // Option to ask for FragPhoton or Pi0 or Eta or gamma decays in calorimeters PHOS acceptance
380 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
381 Int_t fPHOSRotateCandidate; // Internal member to select the particle candidate to trigger the event phi rotation, to put it in PHOS phi acceptance
382 Float_t fTriggerParticleMinPt; // Minimum momentum of Fragmentation Photon or Pi0 or other hadron
383 Float_t fPhotonMinPt; // Minimum momentum of Photon (not in use)
384 Float_t fElectronMinPt; // Minimum momentum of Electron (not in use)
385 //Calorimeters eta-phi acceptance
386 Float_t fPHOSMinPhi; // Minimum phi PHOS, degrees
387 Float_t fPHOSMaxPhi; // Maximum phi PHOS, degrees
388 Float_t fPHOSEta; // Minimum eta PHOS, coverage delta eta
389 Float_t fEMCALMinPhi; // Minimum phi EMCAL, degrees
390 Float_t fEMCALMaxPhi; // Maximum phi EMCAL, degrees
391 Float_t fEMCALEta; // Maximum eta EMCAL, coverage delta eta
393 Bool_t fkTuneForDiff; // Pythia tune
396 AliGenPythia(const AliGenPythia &Pythia);
397 AliGenPythia & operator=(const AliGenPythia & rhs);
400 Bool_t CheckDiffraction();
401 Bool_t GetWeightsDiffraction(Double_t M, Double_t &Mmin, Double_t &Mmax,
402 Double_t &wSD, Double_t &wDD, Double_t &wND);
404 ClassDef(AliGenPythia, 14) // AliGenerator interface to Pythia