Double_t AliKalmanTrack::fConvConst;
+//_______________________________________________________________________
+AliKalmanTrack::AliKalmanTrack():
+ fLab(-3141593),
+ fChi2(0),
+ fMass(0.13957),
+ fN(0)
+{
+ if (fConvConst==0)
+ Fatal("AliKalmanTrack()","The magnetic field has not been set !\n");
+}
+
+//_______________________________________________________________________
+AliKalmanTrack::AliKalmanTrack(const AliKalmanTrack &t):
+ TObject(t),
+ fLab(t.fLab),
+ fChi2(t.fChi2),
+ fMass(t.fMass),
+ fN(t.fN)
+{
+ if (fConvConst==0)
+ Fatal("AliKalmanTrack(const AliKalmanTrack&)",
+ "The magnetic field has not been set !\n");
+}
+