DELPHI Z0 PEAK EVENT

DELPHI Event r0039265e0004479


e+ e- ---> q qbar , with V0
q qbar event with two jets and a V0 in one of them.

The V0 originates in the middle of the TPC (up-left in x,y and z,y projections, green tracks). Both tracks have 3.7 GeV/c momentum. If interpreted as pions, they lead to a mass of about 0.5 GeV, compatible with a K0 decay.