Add three particle correlation loop for correction of auto-correlaton bias

[u/mrichter/AliRoot.git] / TPC / AliTPCcalibDB.cxx

diff --git a/TPC/AliTPCcalibDB.cxx b/TPC/AliTPCcalibDB.cxx
index f3fa3b1bfef210d36a2dc19d8259ac06f5a1de5e..765926b5b874974ea040bb2e4471e60d56c708e7 100644 (file)
--- a/TPC/AliTPCcalibDB.cxx
+++ b/TPC/AliTPCcalibDB.cxx
@@ -48,7 +48,7 @@
 //          Simulation:      applied in the AliTPC::MakeSector - adding offset
 //          Reconstruction:  AliTPCTransform::Transform() - remove offset
 //                           AliTPCTransform::Transform() - to be called
-//                           in AliTPCtracker::Transform()      
+//                           in AliTPCtrackerMI::Transform()      
 //
 // 
 // 2.)  Space points transformation:
@@ -2048,6 +2048,7 @@ Double_t AliTPCcalibDB::GetVDriftCorrectionGy(Int_t timeStamp, Int_t run, Int_t
 
   // use TPC-ITS if present
   TGraphErrors *gr= (TGraphErrors*)array->FindObject("ALIGN_ITSB_TPC_VDGY");
+  if (!gr) gr = (TGraphErrors*)array->FindObject("ALIGN_TOFB_TPC_VDGY");
   if(gr) { 
     result = AliTPCcalibDButil::EvalGraphConst(gr,timeStamp);