For Pythia with tune don't switch off MI in ConfigHeavyFlavor

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

diff --git a/PYTHIA6/AliPythia.cxx b/PYTHIA6/AliPythia.cxx
index c607927b306296162a52c1542b3c6a7c83b9c7d7..e7e8d01af71b76c51f169cf90ca2a8a218f0abff 100644 (file)
--- a/PYTHIA6/AliPythia.cxx
+++ b/PYTHIA6/AliPythia.cxx
@@ -1372,10 +1372,13 @@ void AliPythia::ConfigHeavyFlavor()
     //
     SetMSEL(1);
     
-    // No multiple interactions
-    SetMSTP(81,0);
-    SetPARP(81, 0.);
-    SetPARP(82, 0.);    
+
+    if (fItune < 0) {
+      // No multiple interactions
+      SetMSTP(81,0);
+      SetPARP(81, 0.);
+      SetPARP(82, 0.);    
+    }
     // Initial/final parton shower on (Pythia default)
     SetMSTP(61,1);
     SetMSTP(71,1);