Correct flukaid for positron.

[u/mrichter/AliRoot.git] / TFluka / source_bg.cxx

diff --git a/TFluka/source_bg.cxx b/TFluka/source_bg.cxx
index b80fd600aaae56e96cb29429a28bdd817d1467d8..030aedc9a2f5204d1f47b151f93866517d7e3ad7 100644 (file)
--- a/TFluka/source_bg.cxx
+++ b/TFluka/source_bg.cxx
@@ -97,6 +97,8 @@ extern "C" {
 // projectile
          gener->SetProjectile("P",  1,  1);
          gener->SetTarget    ("A", 16,  8);
+         gener->SetBoostLHC(0);
+         
 // tell hijing to keep the full parent child chain
          gener->KeepFullEvent();
 // enable jet quenching
@@ -119,10 +121,10 @@ extern "C" {
          gener->Generate();
          Int_t npart = stack->GetNprimary();
          // Vertex
-         Float_t za   =  4000. * gRandom->Rndm() - 2000.;
+         Float_t za   =  4000. * gRandom->Rndm() -2000.;
          // Direction
-         Float_t dir  = (gRandom->Rndm() < 0.5) ? 1. : -1.;
-         
+//       Float_t dir  = (za < 0.) ? 1. : -1.;
+         Float_t dir  = (gRandom->Rndm() < 0.5)? 1. : -1;
          
          for (Int_t part=0; part<npart; part++) {
              particle = stack->Particle(part);