ar X iv : h ep - t h / 99 03 19 1 v 3 2 2 N ov 1 99 9 GATC - 99 - 01 Boundary TBA Equations for a Non - diagonal Theory

ar X iv : h ep - t h / 99 03 19 1 v 2 2 5 M ar 1 99 9 GATC - 99 - 01 Boundary TBA Equations for a Non - diagonal Theory

We compute the boundary entropies for the allowed boundary conditions of the SU (2)-invariant principal chiral model at level k = 1. We used the reflection factors determined in previous work. As a by-product we obtain some miscellaneous results such as the ground-state energy for mixed boundary conditions as well as the degeneracies of the Kondo model in the underscreened and exactly screened ...

99 03 19 1 v 1 2 2 M ar 1 99 9 GATC - 99 - 01 Boundary TBA Equations for a Non - diagonal Theory

We compute the boundary entropies for the allowed boundary conditions of the SU (2)-invariant principal chiral model at level k = 1. We used the reflection factors determined in ref.[27]. As a by-product we obtain some miscellaneous results such as the ground-state energy for mixed boundary conditions as well as the degeneracies of the Kondo model in the underscreened and exactly screened cases...

ar X iv : h ep - t h / 99 03 19 4 v 1 2 2 M ar 1 99 9 The Wess - Zumino Model and the AdS 4 / CFT 3 Correspondence

We consider the non-interacting massive Wess-Zumino model in four-dimensional anti-de Sitter space and show that the conformal dimensions of the corresponding boundary fields do not always satisfy the relation expected from superconformal invariance.

ar X iv : h ep - t h / 99 03 19 4 v 2 2 3 M ar 1 99 9 The Wess - Zumino Model and the AdS 4 / CFT 3 Correspondence

We consider the non-interacting massive Wess-Zumino model in four-dimensional anti-de Sitter space and show that the conformal dimensions of the corresponding boundary fields satisfy the relations expected from superconformal invariance. In some cases the irregular mode must be used for one of the scalar fields.

ar X iv : h ep - p h / 99 11 40 8 v 1 19 N ov 1 99 9 Quark Matter 99 Summary : Hadronic Signals