From 7710132c9f6bb3e16afb1af6e5caa20e53ae515b Mon Sep 17 00:00:00 2001
From: Florian Uhlig <f.uhlig@gsi.de>
Date: Tue, 17 Nov 2020 11:39:22 +0100
Subject: [PATCH] Fix problem with primary particles from pluto, refs #1790
These primaries shouldn't be transported
---
sim/transport/base/CbmStack.cxx | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/sim/transport/base/CbmStack.cxx b/sim/transport/base/CbmStack.cxx
index 79996e8bf1..ac205486bc 100644
--- a/sim/transport/base/CbmStack.cxx
+++ b/sim/transport/base/CbmStack.cxx
@@ -170,7 +170,10 @@ void CbmStack::PushTrack(Int_t toBeDone,
// Note that for particles created by TGeant4, toBeDone is kFALSE,
// meaning that particles will not be put onto the internal stack.
// Geant4 seems to have a separate, internal stack administration.
- if (fdoTracking && toBeDone) fStack.push(particle);
+ if (fdoTracking && toBeDone) {
+ particle->SetBit(1);
+ fStack.push(particle);
+ }
}
// -------------------------------------------------------------------------
@@ -212,7 +215,11 @@ TParticle* CbmStack::PopPrimaryForTracking(Int_t iPrim) {
// a primary.
TParticle* part = (TParticle*) fParticles->At(iPrim);
assert(part->GetUniqueID() == kPPrimary);
- return part;
+ if (!part->TestBit(1)) {
+ return NULL;
+ } else {
+ return part;
+ }
}
// -------------------------------------------------------------------------
--
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