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// $Id: PamVMCPrimaryGenerator.h,v 1.0 2007/06/03 |
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#ifndef PAMVMC_PRIMARY_GENERATOR_H |
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#define PAMVMC_PRIMARY_GENERATOR_H |
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#include <iostream> |
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#include <TVirtualMCApplication.h> |
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#include <TClonesArray.h> |
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#include <TVector3.h> |
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#include <TVector2.h> |
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#include <TMath.h> |
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#include <TRandom.h> |
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#include <TF1.h> |
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//#include <TObjectTable.h> |
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#include "PamRootManager.h" |
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#include "PamVMC2PiAux.h" |
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#include "PamVMCPrimaryGF.h" |
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class TVirtualMCStack; |
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using std::cout; |
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using std::endl; |
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using TMath::Sqrt; |
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class PamVMCPrimary : public TObject |
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{ |
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public: |
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PamVMCPrimary(): fID(0), fPDG(0), fX0(0.), fY0(0.), fZ0(0.), fTHETA(0.), fPHI(0.), fP0(0.), fGOOD(kFALSE), fXTOL(-100.), fYTOL(-100.){ |
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for (Int_t j = 0; j<14; j++){ |
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fCR_X[j] = -100.; |
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fCR_Y[j] = -100.; |
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} |
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}; |
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virtual ~PamVMCPrimary(){ /*gObjectTable->Remove(this);*/}; |
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UInt_t fID; |
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Int_t fPDG; |
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Double_t fX0, fY0, fZ0; |
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Double_t fTHETA, fPHI; |
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Double_t fP0; |
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Bool_t fGOOD; |
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Double_t fXTOL, fYTOL; |
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Double_t fCR_X [14]; |
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Double_t fCR_Y [14]; |
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void Clean() { fID=0; fPDG=0; fX0=fY0=fZ0=fTHETA=fPHI=fP0=0.; fGOOD=kFALSE; fXTOL=fYTOL=-100.; |
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for (Int_t j = 0; j<14; j++){ |
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fCR_X[j] = -100.; |
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fCR_Y[j] = -100.; |
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} |
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} |
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void Clear(const Option_t * =""){ this->~PamVMCPrimary(); } |
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void Print(const Option_t * ="") const |
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{ cout<<"PRIMARY particle "<<fID<<" infromation:"<<endl; |
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cout<<"Pdg="<<fPDG<<endl; |
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cout<<"Position: "<<"("<<fX0<<","<<fY0<<","<<fZ0<<")"<<endl; |
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cout<<"P0, Theta, Phi: "<<fP0<<","<<fTHETA<<","<<fPHI<<endl; |
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cout<<"GOOD Single Track:"<<fGOOD<<endl; |
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cout<<"Xtol= "<<fXTOL<<" Ytol= "<<fYTOL<<endl; |
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cout<<" Coordinates of acceptance planes crossing:"<<endl; |
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for(Int_t i = 0; i< 14; i++){ |
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cout<<"i="<<i<<" X="<<fCR_X[i]<<" Y="<<fCR_Y[i]<<endl; |
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} |
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} |
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ClassDef(PamVMCPrimary,1); |
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}; |
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PamVMCPrimary & operator+=(PamVMCPrimary &a, const PamVMCPrimary &b); |
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class PamVMCPrimaryGenerator : public TObject |
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{ |
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public: |
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PamVMCPrimaryGenerator(TVirtualMCStack* stack); |
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PamVMCPrimaryGenerator(); |
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virtual ~PamVMCPrimaryGenerator(); |
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// methods |
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void GeneratePrimary(); |
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// set methods |
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void SetParticle(Int_t pdg); |
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void SetParticleID(UInt_t id){ fprim.fID = id; }; |
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void SetPosition(Double_t vx, Double_t vy, Double_t vz) |
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{fprim.fX0=vx; fprim.fY0=vy; fprim.fZ0=vz;}; |
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void SetKinEnergy(Double_t kinEnergy) {fprim.fP0=KinEToMomentum(kinEnergy);}; |
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void SetRigidity(Double_t rigidity) {fprim.fP0=RigToMomentum(rigidity);}; |
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void SetMomentum(Double_t momentum) {fprim.fP0=momentum; }; |
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void SetDirection(Double_t theta, Double_t phi) {fprim.fTHETA=theta; fprim.fPHI=phi; }; |
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void SetMomentum(Double_t px, Double_t py, Double_t pz); |
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// gen methods |
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void GenPosition(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax){ |
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SetPosition(frandom->Uniform(xmin,xmax),frandom->Uniform(ymin,ymax),frandom->Uniform(zmin,zmax)); } |
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void GenDirection(Double_t thetamin, Double_t thetamax, Double_t phimin, Double_t phimax){ |
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Double_t theta = TMath::ASin(Sqrt( frandom->Uniform( TMath::ASin(thetamin), TMath::ASin(thetamax)))); |
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Double_t phi = TMath::TwoPi() * frandom->Uniform( phimin, phimax ); |
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SetDirection(theta, phi); |
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} |
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void GenPosAng(TVector3 &pos, TVector2 &ang) { f2PiAux->GenPosAng(pos,ang); } |
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void Gen2PiPosAng(){ |
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TVector3 pos; |
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TVector2 ang; |
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GenPosAng(pos,ang); |
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SetPosition( pos.X(), pos.Y(), pos.Z() ); |
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SetDirection( ang.X(), ang.Y() ); |
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} |
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//flat spectra generator |
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void GenSpe(Double_t PEmin, Double_t PEmax, Bool_t isEnergy=kFALSE); |
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//power law spectra, gamma - differential spectral index |
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void GenSpe(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE); |
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void GenSpe_Flat(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE); |
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void GenSpe_3par(Double_t PEmin, Double_t PEmax, Double_t a, Double_t b, Double_t c); |
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void GenSphericalPhiThe(); // cecilia // flusso istropo // sets phi the |
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void GenSphPhiThe(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, |
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Double_t zmin, Double_t zmax); // flusso isotropo entro S2 S3 |
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// sets position and phi the |
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// get methods |
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Int_t GetParticleID(){ return fprim.fID; }; |
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Int_t GetParticle(){ return fprim.fPDG; }; |
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void GetPositon(TVector3 & v){ v.SetXYZ(fprim.fX0,fprim.fY0,fprim.fZ0); }; |
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void GetPosition(Double_t & X0, Double_t & Y0,Double_t & Z0) |
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{X0=fprim.fX0; Y0=fprim.fY0; Z0=fprim.fZ0;}; |
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Double_t GetKinEnergy() { return MomentumToKinE(fprim.fP0); }; |
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Double_t GetRigidity() { return MomentumToRig(fprim.fP0); }; |
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Double_t GetMomentum() { return fprim.fP0; }; |
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Double_t Get2PiArea() { return f2PiAux->GetArea(); }; |
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void GetDirection(TVector2 & v) {v.Set(fprim.fTHETA,fprim.fPHI);} |
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void GetDirection(Double_t &theta, Double_t & phi) { theta = fprim.fTHETA; phi = fprim.fPHI;} |
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Bool_t Getgood(){ return fprim.fGOOD; }; |
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void GetTol(Double_t& xtol, Double_t& ytol){ xtol=fprim.fXTOL; ytol=fprim.fYTOL; }; |
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void GetCR_GF(Double_t& xcr, Double_t& ycr, Int_t id_GF){ |
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if(id_GF<14){ |
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xcr=fprim.fCR_X[id_GF]; |
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ycr=fprim.fCR_Y[id_GF]; |
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} |
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} |
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Int_t GetNgood(){ return fngood; } |
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//initialize random |
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void SetRandom(TRandom* random){ |
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frandom = random; |
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f2PiAux->SetRandom(random); |
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} |
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//work with collection of primaries |
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void Register(){ |
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PamRootManager::Instance()-> |
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Register("PRIM","TClonesArray", &fprimColl); |
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} |
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void ClearPrimCol(){ |
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fevno=0; |
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(*fprimColl).Clear("C"); |
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} |
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//all methods to operate with PamVMCPrimaryGF object |
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//after each step of primary |
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void SetZeroStep(Double_t z_curr, Double_t x_curr, Double_t y_curr){ |
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fzprev = z_curr; |
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fxprev = x_curr; |
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fyprev = y_curr; |
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} |
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void CheckCrossing(Double_t z_curr, Double_t x_curr, Double_t y_curr){ |
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fpgf->CheckCrossing(fzprev,fxprev,fyprev, z_curr, x_curr, y_curr); |
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SetZeroStep(z_curr,x_curr, y_curr); |
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} |
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//after last step of primary |
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void CheckInsideAcceptance(){ |
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for(Int_t i = 0; i<NGF; i++) fprim.fCR_X[i] = fprim.fCR_Y[i] = fprim.fXTOL = fprim.fYTOL = -100.; //zeroing |
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fprim.fGOOD = fpgf->IsInsideAcceptance(fprim.fCR_X, fprim.fCR_Y, fprim.fXTOL, fprim.fYTOL); |
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fpgf->Clear(); |
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if(fprim.fGOOD) fngood++; |
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//Here I'm getting what I have in collection and asume that I have only 1 primary here |
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//If I wish to launch more in 1 event I need change this stuff |
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PamVMCPrimary* tmp = (PamVMCPrimary*)fprimColl->At(0); |
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if(tmp) *tmp = fprim; |
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} |
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Double_t MomentumToKinE(Double_t P0); |
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Double_t KinEToMomentum(Double_t E0); |
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Double_t MomentumToRig(Double_t P0) { return TMath::Abs(P0/fcharge); }; |
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Double_t RigToMomentum(Double_t R0){ return TMath::Abs(R0*fcharge); }; |
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Double_t function3par(Double_t xx, Double_t a, Double_t b, Double_t c){return 5.*pow((xx + b * exp(-c * sqrt(xx))),-a);}; |
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private: |
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// methods |
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// data members |
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TVirtualMCStack* fStack; |
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Int_t fevno; |
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Int_t fngood; //particles inside nominal acceptance |
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PamVMCPrimary fprim; |
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Double_t fmass; |
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Double_t fcharge; |
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Double_t fxprev, fyprev, fzprev; // coordinates of primary on prev. step |
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TClonesArray* fprimColl; |
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TRandom* frandom; // Class is not a owner of this object |
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TF1* ftheta; // To generate sherical distributhin in theta-angle |
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PamVMC2PiAux* f2PiAux; //2 Pi generator aux stuff |
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PamVMCPrimaryGF* fpgf; // Object which |
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ClassDef(PamVMCPrimaryGenerator,1) //PamVMCPrimaryGenerator |
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}; |
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// inline functions |
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inline Double_t PamVMCPrimaryGenerator::MomentumToKinE(Double_t P0) |
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{ return Sqrt(P0*P0+fmass*fmass)-fmass; } |
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inline Double_t PamVMCPrimaryGenerator::KinEToMomentum(Double_t E0) |
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{ return Sqrt(E0*E0+2.*E0*fmass); } |
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#endif //PAMVMC_PRIMARY_GENERATOR_H |
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