Indication for light sneutrinos and gauginos from precision electroweak data

The present standard model fit of precision data has a low confidence level , and is characterized by a few inconsistencies. We look for supersymmetric effects that could improve the agreement among the electroweak precision m easurements and with the direct lower bound on the Higgs mass. We find that this is the case particularly if the 3.6 sigma discrepancy between sin(2) theta (eff) from leptonic and hadronic asymmetries is finally settled more on the side of the leptonic ones. After the inclusion of all experimental c onstraints, our analysis selects light sneutrinos, with masses in the range 55 - 80 GeV, and charged sleptons with masses just above their experimenta l limit, possibly with additional effects from light gauginos. The phenomen ological implications of this scenario are discussed.