  We present our final results for the mass of the six quark flavor singlet
state (J^P=0^+, S=-2) called H dibaryon, which would be the lightest possible
strangelet in the context of strange quark matter. The calculations are
performed in quenched QCD on (8-24)^3 x 30 lattices with the (1,2) Symanzik
improved gauge action and the clover fermion action. Furthermore the fuzzing
technique for the fermion fields and smearing of the gauge fields is applied in
order to enhance the overlap with the ground state. Depending on the lattice
size we observe an H mass slightly above or comparable with the \Lambda\Lambda
threshold for strong decay. Therefore a bound H dibaryon state seemed to be
ruled out by our simulation.
