Coverity fix.

[u/mrichter/AliRoot.git] / PYTHIA6 / AliPythia6.cxx

diff --git a/PYTHIA6/AliPythia6.cxx b/PYTHIA6/AliPythia6.cxx
index 443f11d4e1ecc484ce82f357a7af6be5771544a9..696b08dd57ee661612ca3c658d0912beb73bfaf3 100644 (file)
--- a/PYTHIA6/AliPythia6.cxx
+++ b/PYTHIA6/AliPythia6.cxx
@@ -73,6 +73,11 @@ AliPythia6::AliPythia6():
 // Default Constructor
 //
 //  Set random number
+    Int_t i;
+    for (i = 0; i <  501; i++) fDefMDCY[i] = 0;
+    for (i = 0; i < 2001; i++) fDefMDME[i] = 0;
+    for (i = 0; i <    4; i++) fZQuench[i] = 0;
+
     if (!AliPythiaRndm::GetPythiaRandom()) 
       AliPythiaRndm::SetPythiaRandom(GetRandom());
     fGlauber          = 0;
@@ -93,6 +98,10 @@ AliPythia6::AliPythia6(const AliPythia6& pythia):
     fQuenchingWeights(0)
 {
     // Copy Constructor
+    Int_t i;
+    for (i = 0; i <  501; i++) fDefMDCY[i] = 0;
+    for (i = 0; i < 2001; i++) fDefMDME[i] = 0;
+    for (i = 0; i <    4; i++) fZQuench[i] = 0;
     pythia.Copy(*this);
 }
 
@@ -249,6 +258,19 @@ void AliPythia6::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfu
 
        AtlasTuning();
        break;
+    case kPyMbAtlasTuneMC09:
+// Minimum Bias pp-Collisions
+//
+//   
+//      select Pythia min. bias model
+       SetMSEL(0);
+       SetMSUB(92,1);             // single diffraction AB-->XB
+       SetMSUB(93,1);             // single diffraction AB-->AX
+       SetMSUB(94,1);             // double diffraction
+       SetMSUB(95,1);             // low pt production
+
+       AtlasTuning_MC09();
+       break;
 
     case kPyMbWithDirectPhoton:
 // Minimum Bias pp-Collisions with direct photon processes added 
@@ -392,6 +414,7 @@ void AliPythia6::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfu
     case kPyD0ppMNR:
     case kPyDPlusppMNR:
     case kPyDPlusStrangeppMNR:
+    case kPyLambdacppMNR:
       // Tuning of Pythia parameters aimed to get a resonable agreement
       // between with the NLO calculation by Mangano, Nason, Ridolfi for the
       // c-cbar single inclusive and double differential distributions.
@@ -750,7 +773,7 @@ void  AliPythia6::Quench()
     Double_t px = 0., py = 0., pz = 0., e = 0., m = 0., p = 0., pt = 0., theta = 0., phi = 0.;
     Double_t pxq[4], pyq[4], pzq[4], eq[4], yq[4], mq[4], pq[4], phiq[4], thetaq[4], ptq[4];
     Bool_t  quenched[4];
-    Double_t wjtKick[4];
+    Double_t wjtKick[4] = {0., 0., 0., 0.};
     Int_t nGluon[4];
     Int_t qPdg[4];
     Int_t   imo, kst, pdg;
@@ -1383,6 +1406,37 @@ void AliPythia6::AtlasTuning()
        SetPARP(67,1);             // Regulates Initial State Radiation
 }
 
+void AliPythia6::AtlasTuning_MC09()
+{
+    //
+    // Configuration for the ATLAS tuning
+    printf("ATLAS New TUNE MC09\n");
+    SetMSTP(81,21);             // treatment for MI, ISR, FSR and beam remnants: MI on, new model
+    SetMSTP(82, 4);             // Double Gaussian Model
+    SetMSTP(52, 2);             // External PDF
+    SetMSTP(51, 20650);         // MRST LO*
+  
+    
+    SetMSTP(70, 0);             // (was 2: def manual 1, def code 0) virtuality scale for ISR 
+    SetMSTP(72, 1);             // (was 0: def 1) maximum scale for FSR
+    SetMSTP(88, 1);             // (was 0: def 1) strategy for qq junction to di-quark or baryon in beam remnant
+    SetMSTP(90, 0);             // (was 1: def 0) strategy of compensate the primordial kT
+
+    SetPARP(78, 0.3);           // the amount of color reconnection in the final state
+    SetPARP(80, 0.1);           // probability of color partons kicked out from beam remnant
+    SetPARP(82, 2.3);           // [GeV]    PT_min at Ref. energy    
+    SetPARP(83, 0.8);           // Core density in proton matter distribution (def.value)    
+    SetPARP(84, 0.7);           // Core radius
+    SetPARP(90, 0.25);          //  2*epsilon (exponent in power law)
+    SetPARJ(81, 0.29);          // (was 0.14: def 0.29) Labmda value in running alpha_s for parton showers
+
+    SetMSTP(95, 6);
+    SetPARJ(41, 0.3);           // a and b parameters of the symmm. Lund FF
+    SetPARJ(42, 0.58);
+    SetPARJ(46, 0.75);          // mod. of the Lund FF for heavy end-point quarks
+    SetPARP(89,1800.);         // [GeV]   Ref. energy
+}
+
 void AliPythia6::SetPtHardRange(Float_t ptmin, Float_t ptmax)
 {
     // Set the pt hard range