CSP registers depend of FEE firmware, not RCU firmware

[u/mrichter/AliRoot.git] / FMD / AliFMDESDRevertexer.h

diff --git a/FMD/AliFMDESDRevertexer.h b/FMD/AliFMDESDRevertexer.h
index c4d59525729e0726f91932c648f30311fde4758c..899da5679ec601f416981b2952e53eb09c12a74e 100644 (file)
--- a/FMD/AliFMDESDRevertexer.h
+++ b/FMD/AliFMDESDRevertexer.h
@@ -191,7 +191,7 @@ AliFMDESDRevertexer::PhysicalCoordinates(UShort_t  det,
   if (x == 0 && y == 0 && z == 0) return kFALSE;
   
   // Correct for vertex offset. 
-  z     += vz;
+  z     -= vz;
   phi   =  TMath::ATan2(y, x);
   r     =  TMath::Sqrt(y * y + x * x);
   theta =  TMath::ATan2(r, z);