DELPHI Event r064164e009707
from the 130-140 GeV Run
e+ e- ---> q qbar gamma
From 130.4 GeV run.
Radiative return to q-qbar 3 jet event,
gamma lost in beam pipe.
The q-qbar system has 99 GeV mass
(but too much Pt, probably due to bad measurement or energy lost at
Theta = 90 degree).
Characteristics :
Evis = 103 GeV , Mvis = 99 GeV
Emiss = 27 GeV, Mmiss**2 = -(6 GeV)**2, P_{t,miss} = 14 GeV.