ALIROOT-6269 de/dx scale factor rel. to G3 changed from 1.12 to 1.164

sevdokim · Aug 24, 2015 · 8febb2e · 8febb2e
1 parent 8548f30
commit 8febb2e
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/TRD/AliTRDtestG4.cxx b/TRD/AliTRDtestG4.cxx
@@ -48,6 +48,7 @@ AliTRDtestG4::AliTRDtestG4()
   ,fTR(NULL)
   ,fStepSize(0)
   ,fWion(0)
+  ,fScaleG4(1.164)
 {
   //
   // Default constructor
@@ -62,6 +63,7 @@ AliTRDtestG4::AliTRDtestG4(const char *name, const char *title)
   ,fTR(NULL)
   ,fStepSize(0.1)
   ,fWion(0)
+  ,fScaleG4(1.164)
 {
   //
   // Standard constructor for Transition Radiation Detector version 1
@@ -413,7 +415,7 @@ void AliTRDtestG4::StepManager()
   const Double_t kBig         = 1.0e+12;
   const Float_t  kEkinMinStep = 1.0e-5;  // Minimum energy for the step size adjustment
 
-  const Double_t kScaleG4     = 1.12;
+  //  const Double_t kScaleG4     = 1.12;
 
   // Set the maximum step size to a very large number for all 
   // neutral particles and those outside the driftvolume
@@ -498,7 +500,7 @@ void AliTRDtestG4::StepManager()
   // Calculate the charge according to GEANT Edep
   // Create a new dEdx hit
   eDep = TMath::Max(TVirtualMC::GetMC()->Edep(),0.0) * 1.0e+09;
-  eDep /= kScaleG4;
+  eDep /= fScaleG4;
   qTot = (Int_t) (eDep / fWion);
   if ((qTot) ||
       (trkStat)) {

diff --git a/TRD/AliTRDtestG4.h b/TRD/AliTRDtestG4.h
@@ -44,6 +44,7 @@ class AliTRDtestG4 : public AliTRD {
 
           void     SetStepSize(Double_t s)    { fStepSize = s; }
           void     SetTR(Bool_t tr)           { fTRon = tr;    }
+          void     SetScaleG4(Float_t f)      { fScaleG4 = f;  }
 
           Bool_t   GetTR() const              { return fTRon;  }
   AliTRDsimTR     *GetTRDsim() const          { return fTR;    }
@@ -55,13 +56,14 @@ class AliTRDtestG4 : public AliTRD {
 
           Double_t fStepSize;           //  Used for the fixed step size
           Float_t  fWion;               //  Ionization potential
+	  Float_t  fScaleG4;            //  G4 scaling factor of de/dx rel. to g3 
 
  private:
 
   AliTRDtestG4(const AliTRDtestG4 &trd);
   AliTRDtestG4 &operator=(const AliTRDtestG4 &trd);
 
-  ClassDef(AliTRDtestG4,1)                  //  Transition Radiation Detector (test version for G4 simulations)
+  ClassDef(AliTRDtestG4,2)                  //  Transition Radiation Detector (test version for G4 simulations)
 
 };