%0 Journal Article %T Superparticle actions from superfields %A R. Marnelius %A Sh. M. Shvartsman %J Physics %D 1994 %I arXiv %R 10.1016/S0550-3213(94)90653-X %X Gauge invariant complex covariant actions for superparticles are derived from the field equations for the chiral superfields in a precise manner. The massive and massless cases in four dimensions are treated both free and in interaction with an external super Maxwell field. By means of a generalized BRST quantization these complex actions are related to real actions with second class constraints which are new in some cases. %U http://arxiv.org/abs/hep-th/9405164v2