+ vertex2.GetXYZ(v2[0],v2[1],v2[2]);
+ vertex2.GetPPxPyPz(mom[0],mom[1],mom[2]);
+ vertex2.GetNPxPyPz(mom[3],mom[4],mom[5]);
+ // impact parameters of the tracks w.r.t. the primary vertex
+
+ d0[0] = 10000.*pt.GetD(fV1[0],fV1[1],b);
+ d0[1] = -10000.*nt.GetD(fV1[0],fV1[1],b);
+ }
+ /*