Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-07-06
Nucl.Phys. B730 (2005) 364-376
Physics
High Energy Physics
High Energy Physics - Theory
16 pages, references added, version to appear in Nucl. Phys. B
Scientific paper
10.1016/j.nuclphysb.2005.10.001
We show that the stress-energy tensor for a superstring in the AdS5xS5 background is written in a supersymmetric generalized "Sugawara" form. It is the "supertrace" of the square of the right-invariant current which is the Noether current satisfying the flatness condition. The Wess-Zumino term is taken into account through the supersymmetric gauge connection in the right-invariant currents, therefore the obtained stress-energy tensor is kappa invariant. The integrability of the AdS superstring provides an infinite number of the conserved "local" currents which are supertraces of the n-th power of the right-invariant current. For even n the "local" current reduces to terms proportional to the Virasoro constraint and the kappa symmetry constraint, while for odd n it reduces to a term proportional to the kappa symmetry constraint .
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