Search for scalar fermions and longlived scalar leptons at center-of-mass energies of 130-GeV to 172-GeV

Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in agreement with standard model predictions. Limits are set on sfermion masses. Searches for long lived scalar leptons from low scale supersymmetry breaking models exclude stau masses below 55 GeV/c2 at the 95% confidence level, irrespective of the gravitino mass.

electron positron: colliding beams
electron positron: annihilation
sparticle: search for
squark: bottom
squark: top
slepton: tau
selectron
smuon
sfermion: mass
lower limit

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