Little fix

[u/mrichter/AliRoot.git] / PWG1 / ITS / AliAnalysisTaskSEImpParRes.cxx

diff --git a/PWG1/ITS/AliAnalysisTaskSEImpParRes.cxx b/PWG1/ITS/AliAnalysisTaskSEImpParRes.cxx
index 6341a41fa4061f600472ab8cb95caa990e462822..7377bb9d71710b00a091c2c29dd8ba78de464844 100644 (file)
--- a/PWG1/ITS/AliAnalysisTaskSEImpParRes.cxx
+++ b/PWG1/ITS/AliAnalysisTaskSEImpParRes.cxx
@@ -1097,7 +1097,7 @@ void AliAnalysisTaskSEImpParRes::UserExec(Option_t */*option*/)
     esdtrack->PropagateToDCA(vtxESDRec, esd->GetMagneticField(), beampiperadius, dzRec, covdzRec);
     esdtrack->PropagateToDCA(vtxESDSkip, esd->GetMagneticField(), beampiperadius, dzRecSkip, covdzRecSkip);
     if(fReadMC) esdtrack->PropagateToDCA(vtxESDTrue, esd->GetMagneticField(), beampiperadius, dzTrue, covdzTrue);
-    if(covdzRec[0]<0 || covdzRec[2]<0 || covdzRecSkip[0]<0 || covdzRecSkip[2]<0) {
+    if(covdzRec[0]<1.e-13 || covdzRec[2]<1.e-13 || covdzRecSkip[0]<1.e-13 || covdzRecSkip[2]<1.e-13 || covdzTrue[0]<1.e-13 || covdzTrue[2]<1.e-13) {
       delete vtxESDSkip; vtxESDSkip = 0x0;
       continue;
     }