Induced magnetic moment in noncommutative Chern-Simons scalar QED

Details Induced magnetic moment in noncommutative Chern-Simons scalar QED Induced magnetic moment in noncommutative Chern-Simons scalar QED

2004-11-12

arxiv.org/abs/hep-th/0411132v2

JHEP0502:045,2005

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 8 figures. Reference added. A remark about hep-th/0410257, in the original version, changed after clarification from

Scientific paper

10.1088/1126-6708/2005/02/045

We compute the one loop, $O(\th)$ correction to the vertex in the noncommutative Chern-Simons theory with scalar fields in the fundamental representation. Emphasis is placed on the parity odd part of the vertex, since the same leads to the magnetic moment structure. We find that, apart from the commutative term, a $\th$-dependent magnetic moment type structure is induced. In addition to the usual commutative graph, cubic photon vertices also give a finite $\th$ dependent contribution. Furthermore, the two two-photon vertex diagrams, that give zero in the commutative case yield finite $\th$ dependent terms to the vertex function.

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