From 1c50ec1202b8a7f28e5f5ee145cf2d618d8ce863 Mon Sep 17 00:00:00 2001 From: morsch Date: Tue, 6 Jun 2006 12:10:54 +0000 Subject: [PATCH] MSTU(16) = 2 for all processes. --- PYTHIA6/AliPythia.cxx | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/PYTHIA6/AliPythia.cxx b/PYTHIA6/AliPythia.cxx index e98836f31a7..f58c91526a8 100644 --- a/PYTHIA6/AliPythia.cxx +++ b/PYTHIA6/AliPythia.cxx @@ -81,10 +81,13 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun SetMDCY(Pycomp(3312),1,0); SetMDCY(Pycomp(3322),1,0); SetMDCY(Pycomp(3334),1,0); - // select structure function + // Select structure function SetMSTP(52,2); SetMSTP(51,strucfunc); - + // Particles produced in string fragmentation point directly to either of the two endpoints + // of the string (depending in the side they were generated from). + SetMSTU(16,2); + // // Pythia initialisation for selected processes// // @@ -154,7 +157,6 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun // heavy quark masses SetPMAS(4,1,1.2); - SetMSTU(16,2); // // primordial pT SetMSTP(91,1); @@ -165,7 +167,6 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun case kPyBeauty: SetMSEL(5); SetPMAS(5,1,4.75); - SetMSTU(16,2); break; case kPyJpsi: SetMSEL(0); @@ -185,7 +186,6 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun break; case kPyCharmUnforced: SetMSEL(0); - SetMSTU(16,2); // gq->qg SetMSUB(28,1); // gg->qq @@ -194,7 +194,6 @@ void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfun SetMSUB(68,1); break; case kPyBeautyUnforced: - SetMSTU(16,2); SetMSEL(0); // gq->qg SetMSUB(28,1); @@ -1184,7 +1183,6 @@ void AliPythia::ConfigHeavyFlavor() // QCD scales SetMSTP(32,2); SetPARP(34,1.0); - SetMSTU(16,2); } void AliPythia::AtlasTuning() -- 2.43.0