Abstract
We use nonlinear realizations to describe the spontaneous breaking of N = 2 supersymmetry to N = 1 in four dimensions. We identify the Goldstone multiplet with an N = 1 chiral superfield, and show that chiral N = 1 matter is consistent with the partially broken N = 2 supersymmetry. We find that the chiral matter can be in any representation of the gauge group; no mirror particles are required. We present the Goldstone action and the general couplings to N = 1 matter to the first nontrivial order in the scale of symmetry breaking.
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