Superparticles, p-form coordinates and the BPS condition
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A model for n superparticles in (d - n,n) dimensions is studied. The target space supersymmetry involves a product of n momentum generators, and the action has n(n + 1)/2 local bosonic symmetries and n local fermionic symmetries. The precise relation between the symmetries presented here and those existing in the literature is explained. A new model is proposed for superparticles in arbitrary dimensions where coordinates are associated with all the p-form charges occuring in the superalgebra. The model naturally gives rise to the BPS condition for the charges. 1998 Published by Elsevier Science B.V.