X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=EVGEN%2FAliGenParam.h;h=bbd61cebc653437502af3a4f6ab8b0c4dc80c286;hb=c8617efec3865447fdd6c9c8d10b6bde11ebd292;hp=54244f471ee3cbae752a171622aee60ea15e391c;hpb=5c3fd7ea762232b455d7b59c4a255ffd99cc9867;p=u%2Fmrichter%2FAliRoot.git diff --git a/EVGEN/AliGenParam.h b/EVGEN/AliGenParam.h index 54244f471ee..bbd61cebc65 100644 --- a/EVGEN/AliGenParam.h +++ b/EVGEN/AliGenParam.h @@ -5,81 +5,94 @@ /* $Id$ */ -#include "AliGenerator.h" -#include "GenTypeDefs.h" -#include +// +// Class to generate particles from using parametrized pT and y distributions. +// Distributions are obtained from pointer to object of type AliGenLib. +// (For example AliGenMUONlib) +// +// andreas.morsch@cern.ch +// + +#include "AliGenMC.h" class AliPythia; class TParticle; +class AliGenLib; class TF1; +typedef enum { kAnalog, kNonAnalog} Weighting_t; //------------------------------------------------------------- -class AliGenParam : public AliGenerator +class AliGenParam : public AliGenMC { - public: +public: AliGenParam(); - AliGenParam(Int_t npart, Param_t param); - AliGenParam(Int_t npart, Param_t param, - Double_t (*PtPara)(Double_t*, Double_t*), - Double_t (*YPara )(Double_t*, Double_t*), - Int_t (*IpPara)() ); - AliGenParam(const AliGenParam &Param); + AliGenParam(Int_t npart, const AliGenLib * Library, Int_t param, const char* tname = 0); + AliGenParam(Int_t npart, Int_t param, const char* tname = 0, const char* name = 0); + AliGenParam(Int_t npart, Int_t param, + Double_t (*PtPara)(const Double_t*, const Double_t*), + Double_t (*YPara )(const Double_t*, const Double_t*), + Double_t (*V2Para)(const Double_t*, const Double_t*), + Int_t (*IpPara)(TRandom*) ); virtual ~AliGenParam(); + virtual void GenerateN(Int_t ntimes); virtual void Generate(); virtual void Init(); // select particle type - virtual void SetParam(Param_t param=jpsi_p) {fParam=param;} + virtual void SetParam(Int_t param) {fParam = param;} + //Setting the flag for Background transportation while using SetForceDecay() + void SetSelectAll(Bool_t selectall) {fSelectAll = selectall;} // force decay type - virtual void SetForceDecay(Decay_t decay=dimuon) {fForceDecay=decay;} - virtual void SetWeighting(Weighting_t flag=analog) {fAnalog=flag;} - virtual void SetCutOnChild(Int_t flag=0) {fCutOnChild=flag;} - virtual void SetChildMomentumRange(Float_t pmin=0, Float_t pmax=1.e10) - {fChildPMin = pmin; fChildPMax = pmax;} - virtual void SetChildPtRange(Float_t ptmin=0, Float_t ptmax=20.) - {fChildPtMin = ptmin; fChildPtMax = ptmax;} - virtual void SetChildPhiRange(Float_t phimin=-180., Float_t phimax=180) - {fChildPhiMin = TMath::Pi()*phimin/180; - fChildPhiMax = TMath::Pi()*phimax/180;} - virtual void SetChildThetaRange(Float_t thetamin=0, Float_t thetamax=180) - {fChildThetaMin = TMath::Pi()*thetamin/180; - fChildThetaMax = TMath::Pi()*thetamax/180;} - virtual void SetDeltaPt(Float_t delta=0.01) {fDeltaPt=delta;} + virtual void SetWeighting(Weighting_t flag = kAnalog) {fAnalog = flag;} + virtual void SetDeltaPt(Float_t delta=0.01) {fDeltaPt = delta;} + virtual void SetDecayer(AliDecayer* decayer) {fDecayer = decayer;} + virtual void SetForceGammaConversion(Bool_t force=kTRUE) {fForceConv = force;} + virtual void SetKeepParent(Bool_t keep=kTRUE){fKeepParent= keep;} //Store parent even if it does not have childs within cuts + virtual void SetKeepIfOneChildSelected(Bool_t keep=kTRUE){fKeepIfOneChildSelected = keep;} //Accept parent and child even if other children are not within cut. - AliGenParam & operator=(const AliGenParam & rhs); - protected: - Double_t (*fPtParaFunc)(Double_t*, Double_t*); //! Pointer to Pt parametrisation function - Double_t (*fYParaFunc )(Double_t*, Double_t*); //! Pointer to Y parametrisation function - Int_t (*fIpParaFunc )(); //! Pointer to particle type parametrisation function + virtual void Draw(const char * opt); + TF1 * GetPt() { return fPtPara;} + TF1 * GetY() {return fYPara;} + Float_t GetRelativeArea(Float_t ptMin, Float_t ptMax, Float_t yMin, Float_t yMax, Float_t phiMin, Float_t phiMax); + + static TVector3 OrthogonalVector(TVector3 &inVec); + static void RotateVector(Double_t *pin, Double_t *pout, Double_t costheta, Double_t sintheta, + Double_t cosphi, Double_t sinphi); + static double ScreenFunction1(double d); + static double ScreenFunction2(double d); + double RandomEnergyFraction(double Z, double E); + double RandomPolarAngle(); + double RandomMass(Double_t mh); + Int_t VirtualGammaPairProduction(TClonesArray *particles, Int_t nPart); + Int_t ForceGammaConversion(TClonesArray *particles, Int_t nPart); + +protected: + Double_t (*fPtParaFunc)(const Double_t*, const Double_t*); //! Pointer to Pt parametrisation function + Double_t (*fYParaFunc )(const Double_t*, const Double_t*); //! Pointer to Y parametrisation function + Int_t (*fIpParaFunc )(TRandom*); //! Pointer to particle type parametrisation function + Double_t (*fV2ParaFunc )(const Double_t*, const Double_t*);//! Pointer to V2 parametrisation function TF1* fPtPara; // Transverse momentum parameterisation TF1* fYPara; // Rapidity parameterisation - Param_t fParam; // Parameterisation type + TF1* fV2Para; // v2 parametrization + TF1* fdNdPhi; // Phi distribution depending on v2 + Int_t fParam; // Parameterisation type Float_t fdNdy0; // central multiplicity per event Float_t fYWgt; // Y-weight Float_t fPtWgt; // Pt-weight - Weighting_t fAnalog; // Flag for anolog or pt-weighted generation Float_t fBias; // Biasing factor Int_t fTrials; // Number of trials - Decay_t fForceDecay; // Decay channel forced - Int_t fCutOnChild; // Cuts on decay products (children) are enabled/disabled - Float_t fChildPtMin; // Children minimum pT - Float_t fChildPtMax; // Children maximum pT - Float_t fChildPMin; // Children minimum p - Float_t fChildPMax; // Children maximum p - Float_t fChildPhiMin; // Children minimum phi - Float_t fChildPhiMax; // Children maximum phi - Float_t fChildThetaMin;// Children minimum theta - Float_t fChildThetaMax;// Children maximum theta Float_t fDeltaPt; // pT sampling in steps of fDeltaPt - TArrayI fChildSelect; // Children to be selected from decay products - AliPythia *fPythia; // Pointer to pythia object for decays - private: - // check if particle is selected as child - Bool_t ChildSelected(Int_t ip); - // all kinematic selection goes here - Bool_t KinematicSelection(TParticle *particle); - - ClassDef(AliGenParam,1) // Generator using parameterised pt- and y-distribution + Bool_t fSelectAll; // Flag for transportation of Background while using SetForceDecay() + AliDecayer *fDecayer; // ! Pointer to pythia object for decays + Bool_t fForceConv; // + Bool_t fKeepParent; // Store parent even if it does not have childs within cuts + Bool_t fKeepIfOneChildSelected; //Accept parent and child even if other children are not within cut. + +private: + AliGenParam(const AliGenParam &Param); + AliGenParam & operator=(const AliGenParam & rhs); + + ClassDef(AliGenParam, 2) // Generator using parameterised pt- and y-distribution }; #endif