DELPHI Z0 PEAK EVENT

DELPHI Event r0026154e0002958


e+ e- ---> e+ e- , barrel
Clear Bhabha event where the electron and positron have associated showers in the HPC.

Both tracks are measured in the VD, ID and TPC.

The e- (upward in x,y projection) is reconstructed with a momentum of 47.7 GeV/c and has an associated HPC shower of 45.8 GeV.

The e+ (downward in x,y projection) has 40.0 GeV/c momentum and an associated HPC shower of 35.9 GeV. It also has leakage from the HPC into the HAB, which deposits energy in the first layer.