* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.10 2000/06/09 20:31:34 morsch
-All coding rule violations except RS3 corrected
+/* $Id$ */
-Revision 1.9 2000/03/07 13:52:54 morsch
-static Int_t irwn=0;
-
-Revision 1.8 2000/02/14 14:49:38 morsch
-Correct particle type for gamma and neutrons
-More consistent calculation of momentum from kin. energy and mass
-
-Revision 1.7 1999/11/03 17:43:20 fca
-New version from G.Martinez & A.Morsch
-
-Revision 1.6 1999/09/29 09:24:12 fca
-Introduction of the Copyright and cvs Log
-
-*/
+// Read background particles from a FLUKA boundary source file
+// This is a very special generator that works for background studies for the muon-spectrometer.
+// The input files come from FLUKA simulations.
+// Files can be chained.
+// Author: andreas.morsch@cern.ch
#include "AliGenFLUKAsource.h"
-#include "AliMC.h"
-#include "AliRun.h"
-#include "AliPDG.h"
-
+#include <stdlib.h>
+#include <TDatabasePDG.h>
+#include <TPDGCode.h>
+#include <RVersion.h>
+#include <TChain.h>
#include <TFile.h>
#include <TTree.h>
-#include <TChain.h>
-#include <stdlib.h>
- ClassImp(AliGenFLUKAsource)
- AliGenFLUKAsource::AliGenFLUKAsource()
- :AliGenerator(-1)
+#include <TVirtualMC.h>
+
+#include "AliRun.h"
+
+ClassImp(AliGenFLUKAsource)
+
+AliGenFLUKAsource::AliGenFLUKAsource()
+ :AliGenerator(-1),
+ fIkine(6),
+ fAgeMax(1.e-5),
+ fAddWeight(1.),
+ fZshift(0.),
+ fFrac(0.),
+ fSourceId(-1),
+ fFileName(0),
+ fTreeChain(0),
+ fTreeFluka(0),
+ fIp(0.),
+ fIpp(0.),
+ fXi(0.),
+ fYi(0.),
+ fZi(0.),
+ fPx(0.),
+ fPy(0.),
+ fPz(0.),
+ fEkin(0.),
+ fZv(0.),
+ fRv(0.),
+ fItra(0.),
+ fIgas(0.),
+ fWgt(0.),
+ fEtag(0.),
+ fPtg(0.),
+ fAge(0.)
{
// Constructor
fName="FLUKA";
fTitle="FLUKA Boundary Source";
// Read in all particle types by default
- fIkine=6;
// Set maximum admitted age of particles to 1.e-05 by default
- fAgeMax=1.e-05;
// Do not add weight
- fAddWeight=1.;
// Shift the z-coordinate of the impact point by 4.5 cm only if it reads
// from specific boundary source to the chamber (fZshift=4.5;),else there
// is no need to shift as it reads boundary source for the whole volume of
// the Muon Arm; the default value corresponds to boundary source for the
// whole volume of the MUON Arm
- fZshift=0;
// Set the default file
- fFileName="flukasource.root";
-
- fTreeFluka=0;
fTreeChain = new TChain("h1");
//
// Read all particles
fNpart=-1;
-
-
}
AliGenFLUKAsource::AliGenFLUKAsource(Int_t npart)
- :AliGenerator(npart)
+ :AliGenerator(npart),
+ fIkine(6),
+ fAgeMax(1.e-5),
+ fAddWeight(1.),
+ fZshift(0.),
+ fFrac(0.),
+ fSourceId(-1),
+ fFileName(""),
+ fTreeChain(new TChain("h1")),
+ fTreeFluka(0),
+ fIp(0.),
+ fIpp(0.),
+ fXi(0.),
+ fYi(0.),
+ fZi(0.),
+ fPx(0.),
+ fPy(0.),
+ fPz(0.),
+ fEkin(0.),
+ fZv(0.),
+ fRv(0.),
+ fItra(0.),
+ fIgas(0.),
+ fWgt(0.),
+ fEtag(0.),
+ fPtg(0.),
+ fAge(0.)
{
// Constructor
- fName="FLUKA";
- fTitle="FLUKA Boundary Source";
- // Read in all particle types by default
- fIkine=6;
- // Set maximum admitted age of particles to 1.e-05 by default
- fAgeMax=1.e-05;
- // Do not add weight
- fAddWeight=1.;
- // Shift the z-coordinate of the impact point by 4.5 cm only if it reads
- // from specific boundary source to the chamber (fZshift=4.5;),else there
- // is no need to shift as it reads boundary source for the whole volume of
- // the Muon Arm; the default value corresponds to boundary source for the
- // whole volume of the MUON Arm
- fZshift=0;
- // Set the default file
- fFileName="flukasource.root";
-
- fTreeFluka=0;
- fTreeChain = new TChain("h1");
- fSourceId=-1;
+ fName = "FLUKA";
+ fTitle = "FLUKA Boundary Source";
}
-AliGenFLUKAsource::AliGenFLUKAsource(const AliGenFLUKAsource & FLUKAsource)
+AliGenFLUKAsource::AliGenFLUKAsource(const AliGenFLUKAsource & FLUKAsource):
+ AliGenerator(FLUKAsource),
+ fIkine(6),
+ fAgeMax(1.e-5),
+ fAddWeight(1.),
+ fZshift(0.),
+ fFrac(0.),
+ fSourceId(-1),
+ fFileName(0),
+ fTreeChain(0),
+ fTreeFluka(0),
+ fIp(0.),
+ fIpp(0.),
+ fXi(0.),
+ fYi(0.),
+ fZi(0.),
+ fPx(0.),
+ fPy(0.),
+ fPz(0.),
+ fEkin(0.),
+ fZv(0.),
+ fRv(0.),
+ fItra(0.),
+ fIgas(0.),
+ fWgt(0.),
+ fEtag(0.),
+ fPtg(0.),
+ fAge(0.)
{
-// copy constructor
+// Copy constructor
+ FLUKAsource.Copy(*this);
}
void AliGenFLUKAsource::Generate()
{
// Generate one event
- AliMC* gMC = AliMC::GetMC();
const Int_t kIfluge[28]={kProton, kProtonBar, kElectron, kPositron,
kNuE, kNuEBar, kGamma, kNeutron, kNeutronBar,
Float_t prwn;
Float_t wgt, fwgt;
Float_t phi;
- char name[100];
- Float_t amass, charge, tlife;
- Int_t itrtyp;
+ Float_t amass;
Int_t iwgt;
Int_t i, j, part, nt;
static Int_t irwn=0;
TChain *h2=fTreeChain;
Int_t nentries = (Int_t) h2->GetEntries();
if (fNpart == -1) fNpart=Int_t(nentries*fFrac);
-
+
+
// loop over number of particles
Int_t nb=0;
Int_t ev=gMC->CurrentEvent();
printf("Generate - I'm out \n");
return;
}
+
+ Int_t ifip = Int_t(fIp);
+
if (fSourceId != -1 && fIgas !=fSourceId) {
irwn++;
continue;
}
- if (fIp > 28 || fIp < 0) {
+ if (ifip > 28 || ifip < 0) {
irwn++;
continue;
}
- if ((fIp != fIkine && fIkine != 6 && fIkine != 9 && fIkine != 10) || fAge > fAgeMax){
+ if ((ifip != fIkine && fIkine != kAll && fIkine != kCharged
+ && fIkine != 10) || fAge > fAgeMax){
irwn++;
continue;
- } else if (fIkine == 9) {
- if (fIp == 7 || fIp == 8 || fAge > fAgeMax) {
+ } else if (fIkine == kCharged) {
+ if (ifip == 7 || ifip == 8 || fAge > fAgeMax) {
irwn++;
continue;
}
- } else if (fIkine == 10) {
- if (fIp == 8 || fAge > fAgeMax) {
+ } else if (fIkine == kNoNeutron) {
+ if (ifip == 8 || fAge > fAgeMax) {
irwn++;
continue;
}
irwn++;
//
-// PDG code from FLUKA particle type (fIp)
- part=kIfluge[int(fIp)-1];
+// PDG code from FLUKA particle type (ifip)
+ part=kIfluge[int(ifip)-1];
//
// Calculate momentum from kinetic energy and mass of the particle
- gMC->Gfpart(part, name, itrtyp,
- amass, charge, tlife);
+#if ROOT_VERSION_CODE > 197895
+ amass = gMC->ParticleMass(part);
+#else
+ amass = (TDatabasePDG::Instance())->GetParticle(part)->Mass();
+#endif
prwn=fEkin*sqrt(1. + 2.*amass/fEkin);
wgt = (part == 13) ? fWgt*fAddWeight : fWgt;
iwgt=Int_t(wgt);
fwgt=wgt-Float_t(iwgt);
- gMC->Rndm(random,2);
+ Rndm(random,2);
if (random[0] < fwgt) iwgt++;
if (part==1 && iwgt>100) iwgt=100;
Int_t nstack=0;
for (j=0; j<iwgt; j++) {
- gAlice->SetTrack(fTrackIt,-1,part,p,origin,polar,fAge,"Primary",nt);
- gMC->Rndm(random,2);
+ PushTrack(fTrackIt,-1,part,p,origin,polar,fAge,kPPrimary,nt);
+ Rndm(random,2);
phi=2*random[1]*TMath::Pi();
Float_t pn1=p[0]*TMath::Sin(phi) - p[1]*TMath::Cos(phi);
Float_t pn2=p[0]*TMath::Cos(phi) + p[1]*TMath::Sin(phi);
AliGenFLUKAsource& AliGenFLUKAsource::operator=(const AliGenFLUKAsource& rhs)
{
// Assignment operator
- return *this;
+ rhs.Copy(*this);
+ return (*this);
}
+void AliGenFLUKAsource::Copy(TObject &) const
+{
+ Fatal("Copy","Not implemented!\n");
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff