Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-05-27
J.Math.Phys. 47 (2006) 012304
Physics
High Energy Physics
High Energy Physics - Theory
22 pages, shorter version of this paper submitted to JHEP, v2 has many references added
Scientific paper
10.1063/1.2162330
We develop a gauged Wess-Zumino model in noncommutative Minkowski superspace. This is the natural extension of the work of Carlson and Nazaryan, which extended N=1/2 supersymmetry written over deformed Euclidean superspace to Minkowski superspace. We investigate the interaction of the vector and chiral superfields. Noncommutativity is implemented by replacing products with star products. Although, in general, our star product is nonassociative, we prove that it is associative to the first order in the deformation parameter. We show that our model reproduces the N=1/2 theory in the appropriate limit. Essentially, we find the N=1/2 theory and a conjugate copy. As in the N=1/2 theory, a reparameterization of the gauge parameter, vector superfield and chiral superfield are necessary to write standard C-independent gauge theory. However, our choice of parameterization differs from that used in the N=1/2 supersymmetry, which leads to some unexpected new terms.
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