Charm production process configuration for pPb and pp added

(A. Dainese, N. Carrer)

diff --git a/PYTHIA6/AliGenPythia.cxx b/PYTHIA6/AliGenPythia.cxx
index 7cdb6c9d6739bf0475feccf20e1e17d59cf2c89b..c7cd57f958ac92f965f1c5abbef5729c002a1c33 100644 (file)
--- a/PYTHIA6/AliGenPythia.cxx
+++ b/PYTHIA6/AliGenPythia.cxx
@@ -15,6 +15,9 @@
 
 /*
 $Log$
+Revision 1.1  2003/03/15 15:00:48  morsch
+Classed imported from EVGEN.
+
 Revision 1.69  2003/01/14 10:50:19  alibrary
 Cleanup of STEER coding conventions
 
@@ -362,19 +365,23 @@ void AliGenPythia::Init()
     {
     case kPyCharm:
     case kPyCharmUnforced:
-    case kPyCharmPbMNR:
+    case kPyCharmPbPbMNR:
        fParentSelect[0] =   411;
        fParentSelect[1] =   421;
        fParentSelect[2] =   431;
        fParentSelect[3] =  4122;
        fFlavorSelect    =  4;  
        break;
-    case kPyD0PbMNR:
+    case kPyD0PbPbMNR:
+    case kPyD0pPbMNR:
+    case kPyD0ppMNR:
        fParentSelect[0] =   421;
        fFlavorSelect    =   4; 
        break;
     case kPyBeauty:
-    case kPyBeautyPbMNR:
+    case kPyBeautyPbPbMNR:
+    case kPyBeautypPbMNR:
+    case kPyBeautyppMNR:
        fParentSelect[0]=  511;
        fParentSelect[1]=  521;
        fParentSelect[2]=  531;

diff --git a/PYTHIA6/AliPythia.cxx b/PYTHIA6/AliPythia.cxx
index 49cc5e90132cec5b5100b1a0c0977ba86ea1b7ff..f4747604bccc57ffd817a7faaf04d786ce657346 100644 (file)
--- a/PYTHIA6/AliPythia.cxx
+++ b/PYTHIA6/AliPythia.cxx
@@ -15,6 +15,9 @@
 
 /*
 $Log$
+Revision 1.1  2003/03/15 15:00:48  morsch
+Classed imported from EVGEN.
+
 Revision 1.28  2002/12/09 08:22:56  morsch
 UA1 jet finder (Pycell) for software triggering added.
 
@@ -249,13 +252,13 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun
     case kPyDirectGamma:
        SetMSEL(10);
        break;
-    case kPyCharmPbMNR:
-    case kPyD0PbMNR:
+    case kPyCharmPbPbMNR:
+    case kPyD0PbPbMNR:
       // 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.
       // This parameter settings are meant to work with Pb-Pb collisions
-      // (AliGenPythia::SetNuclei) and with kCTEQ_4L PDFs.
+      // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
       // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
       // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
 
@@ -278,7 +281,7 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun
       SetMSTP(32,2);
       SetPARP(34,1.0);
 
-      // Intrinsic <kT^2>
+      // Intrinsic <kT>
       SetMSTP(91,1);
       SetPARP(91,1.304);
       SetPARP(93,6.52);
@@ -287,7 +290,83 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun
       SetPMAS(4,1,1.2);
 
       break;
-    case kPyBeautyPbMNR:
+    case kPyCharmpPbMNR:
+    case kPyD0pPbMNR:
+      // 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.
+      // This parameter settings are meant to work with p-Pb collisions
+      // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
+      // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
+      // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
+
+      // All QCD processes
+      SetMSEL(1);
+
+      // No multiple interactions
+      SetMSTP(81,0);
+      SetPARP(81,0.0);
+      SetPARP(82,0.0);
+
+      // Initial/final parton shower on (Pythia default)
+      SetMSTP(61,1);
+      SetMSTP(71,1);
+
+      // 2nd order alpha_s
+      SetMSTP(2,2);
+
+      // QCD scales
+      SetMSTP(32,2);
+      SetPARP(34,1.0);
+
+      // Intrinsic <kT>
+      SetMSTP(91,1);
+      SetPARP(91,1.16);
+      SetPARP(93,5.8);
+
+      // Set c-quark mass
+      SetPMAS(4,1,1.2);
+
+      break;
+    case kPyCharmppMNR:
+    case kPyD0ppMNR:
+      // 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.
+      // This parameter settings are meant to work with pp collisions
+      // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
+      // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
+      // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
+
+      // All QCD processes
+      SetMSEL(1);
+
+      // No multiple interactions
+      SetMSTP(81,0);
+      SetPARP(81,0.0);
+      SetPARP(82,0.0);
+
+      // Initial/final parton shower on (Pythia default)
+      SetMSTP(61,1);
+      SetMSTP(71,1);
+
+      // 2nd order alpha_s
+      SetMSTP(2,2);
+
+      // QCD scales
+      SetMSTP(32,2);
+      SetPARP(34,1.0);
+
+      // Intrinsic <kT^2>
+      SetMSTP(91,1);
+      SetPARP(91,1.);
+      SetPARP(93,5.);
+
+      // Set c-quark mass
+      SetPMAS(4,1,1.2);
+
+      break;
+    case kPyBeautyPbPbMNR:
       // Tuning of Pythia parameters aimed to get a resonable agreement
       // between with the NLO calculation by Mangano, Nason, Ridolfi for the
       // b-bbar single inclusive and double differential distributions.
@@ -317,7 +396,7 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun
       SetPARP(67,1.0);
       SetPARP(71,1.0);
 
-      // Intrinsic <kT^2>
+      // Intrinsic <kT>
       SetMSTP(91,1);
       SetPARP(91,2.035);
       SetPARP(93,10.17);
@@ -325,6 +404,84 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun
       // Set b-quark mass
       SetPMAS(5,1,4.75);
 
+      break;
+    case kPyBeautypPbMNR:
+      // Tuning of Pythia parameters aimed to get a resonable agreement
+      // between with the NLO calculation by Mangano, Nason, Ridolfi for the
+      // b-bbar single inclusive and double differential distributions.
+      // This parameter settings are meant to work with p-Pb collisions
+      // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
+      // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
+      // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C.
+
+      // All QCD processes
+      SetMSEL(1);
+
+      // No multiple interactions
+      SetMSTP(81,0);
+      SetPARP(81,0.0);
+      SetPARP(82,0.0);
+
+      // Initial/final parton shower on (Pythia default)
+      SetMSTP(61,1);
+      SetMSTP(71,1);
+
+      // 2nd order alpha_s
+      SetMSTP(2,2);
+
+      // QCD scales
+      SetMSTP(32,2);
+      SetPARP(34,1.0);
+      SetPARP(67,1.0);
+      SetPARP(71,1.0);
+
+      // Intrinsic <kT>
+      SetMSTP(91,1);
+      SetPARP(91,1.60);
+      SetPARP(93,8.00);
+
+      // Set b-quark mass
+      SetPMAS(5,1,4.75);
+
+      break;
+    case kPyBeautyppMNR:
+      // Tuning of Pythia parameters aimed to get a resonable agreement
+      // between with the NLO calculation by Mangano, Nason, Ridolfi for the
+      // b-bbar single inclusive and double differential distributions.
+      // This parameter settings are meant to work with pp collisions
+      // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
+      // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
+      // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C.
+
+      // All QCD processes
+      SetMSEL(1);
+
+      // No multiple interactions
+      SetMSTP(81,0);
+      SetPARP(81,0.0);
+      SetPARP(82,0.0);
+
+      // Initial/final parton shower on (Pythia default)
+      SetMSTP(61,1);
+      SetMSTP(71,1);
+
+      // 2nd order alpha_s
+      SetMSTP(2,2);
+
+      // QCD scales
+      SetMSTP(32,2);
+      SetPARP(34,1.0);
+      SetPARP(67,1.0);
+      SetPARP(71,1.0);
+
+      // Intrinsic <kT>
+      SetMSTP(91,1);
+      SetPARP(91,1.);
+      SetPARP(93,5.);
+
+      // Set b-quark mass
+      SetPMAS(5,1,4.75);
+
       break;
     }
 //

diff --git a/PYTHIA6/AliPythia.h b/PYTHIA6/AliPythia.h
index a71b7fd927f73aa6d1472d90ef33aecfefe386c0..b0d7375b017e3cffa1c63914d0106e573c5a0c74 100644 (file)
--- a/PYTHIA6/AliPythia.h
+++ b/PYTHIA6/AliPythia.h
@@ -11,7 +11,9 @@
 typedef enum
 {kPyCharm, kPyBeauty, kPyCharmUnforced, kPyBeautyUnforced,
  kPyJpsi, kPyJpsiChi, kPyMb, kPyMbNonDiffr, kPyJets, kPyDirectGamma,
- kPyCharmPbMNR, kPyD0PbMNR, kPyBeautyPbMNR}
+ kPyCharmPbPbMNR, kPyD0PbPbMNR, kPyBeautyPbPbMNR,
+ kPyCharmpPbMNR, kPyD0pPbMNR, kPyBeautypPbMNR,
+ kPyCharmppMNR, kPyD0ppMNR, kPyBeautyppMNR}
 Process_t;
 /*
 typedef enum