Hard Diffraction has been subject of studies for more than 10 years and its event selection has been heavyly based on rapidity gaps because of the colorless nature of the pomeron but soft gluon emission tends to destroy the gaps lowering the efficiency to identify those events. We present here a first attempt to use techniques developed at DELPHI, one of the 4 experiments at LEP, to select diffractive events in Dzero experiment, at Tevatron. All results presented here are very preliminary.

Searches for the Higgs boson of the Standard Model and supersymmetric models have been performed by the four LEP experiments in the data collected over almost 12 years (August/1989 until November/2000) at centre-of-mass energies varying from 91.2 GeV to 209 GeV. An excess of candidates for the process e+e<FONT FACE=Symbol>- ®</FONT> Z*<FONT FACE=Symbol>®</FONT> Z0<FONT FACE=Symbol></FONT>H0 was found for Higgs masses near 114 GeV.