fix for event mixing

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

diff --git a/TPC/AliTPCExBExact.cxx b/TPC/AliTPCExBExact.cxx
index c495671324a25ce7f0a588897c047152643ac5d8..2991ae0ce11e10b53ad78511537d2d698f254863 100644 (file)
--- a/TPC/AliTPCExBExact.cxx
+++ b/TPC/AliTPCExBExact.cxx
@@ -29,7 +29,7 @@
 ClassImp(AliTPCExBExact)
 
 const Double_t AliTPCExBExact::fgkEM=1.602176487e-19/9.10938215e-31;
-const Double_t AliTPCExBExact::fgkDriftField=40.e3;
+const Double_t AliTPCExBExact::fgkDriftField=-40.e3;
 
 AliTPCExBExact::AliTPCExBExact()
   : fDriftVelocity(0),