Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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2004-10-06

Int.J.Mod.Phys. A20 (2005) 2763-2772

Physics

High Energy Physics

High Energy Physics - Theory

12 pages. submitted to IJMPA

Scientific paper

10.1142/S0217751X05021014

We study classical integrability of the supersymmetric U(N) $\sigma$ model with the Wess-Zumino-Witten term on full and half plane. We demonstrate the existence of nonlocal conserved currents of the model and derive general recursion relations for the infinite number of the corresponding charges in a superfield framework. The explicit form of the first few supersymmetric charges are constructed. We show that the considered model is integrable on full plane as a concequence of the conservation of the supersymmetric charges. Also, we study the model on half plane with free boundary, and examine the conservation of the supersymmetric charges on half plane and find that they are conserved as a result of the equations of motion and the free boundary condition. As a result, the model on half plane with free boundary is integrable. Finally, we conclude the paper and some features and comments are presented.

**Mourad M. F.**

Physics – High Energy Physics – High Energy Physics - Theory

Scientist

**Zait R. A.**

Physics – High Energy Physics – High Energy Physics - Theory

Scientist

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