EUROPEAN PHYSICAL JOURNAL C, cilt.52, sa.2, ss.375-382, 2007 (SCI-Expanded)
Double-lepton polarization asymmetries in Lambda(b)->Lambda l(+)l(-) decay are calculated in the universal extra dimension (UED) model. It is found that numerous double-lepton polarization asymmetries are very sensitive to the UED model and therefore can be a very useful tool for establishing new physics predicted by the UED model.