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| Paper IPM / Physic / 6964 |
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| Abstract: | |
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In a recent paper [14] we have shown that the noncommutative
SUSY algebra earlierly proposed in [13] has a natural
interpretation and generalization in terms of a U(1) super gauge
symmetry, and hence, it must be naturally realized by
supersymmetric gauge theories on superspace. Here we further
elaborate on this idea by considering a specific example of such
models the U(1) gauged supersymmetric sigma model with a
superpotential term in D=2,N=1 superspace and
investigate the conditions under which the classical dynamics
allows for the realization of a central charge in its associated
generalized superalgebra. This realization accounts for an elegant
interpretation of the central charge as a U(1)) charge for the
elementary excitations as well as for the solitonic (BPS)
solutions of the model under consideration.
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