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Searches for topologies characteristic of Gauge
Mediated SUSY Breaking models have been performed by
analysing 628 pb-1
of data collected at centre-of-mass
energies from 189 to 208GeV with the ALEPH
detector. These topologies include acoplanar photons, non-pointing single
photons, acoplanar leptons, large impact
parameter leptons, detached slepton decay vertices, heavy stable charged
sleptons and multi leptons plus missing
energy final states. No evidence for these new phenomena has been observed
and limits on production cross-sections and sparticle masses have been
derived. A scan on a minimal GMSB
parameter space is performed and model dependent lower limits are derived
for the next-to-lightest supersymmetric
particle (NLSP) mass and the mass scale parameter L,
independently of the NLSP lifetime.
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