THERMODYNAMIC BETHE-ANSATZ FOR N=1 SUPERSYMMETRIC THEORIES

We study a series of N = 1 supersymmetric integrable particle theories in d = 1 + 1 dimensions. These theories are represented as integrable perturbations of specific N = 1 superconformal field theories. Starti ng from the conjectured S-matrices for these theories, we develop the Thermodynamic Bethe Ansatz (TBA), where we use that the 2-particle S-m atrices satisfy a free fermion condition. Our analysis proves a conjec ture by E. Melzer, who proposed that these N = 1 supersymmetric TBA sy stems are ''folded'' versions of N = 2 supersymmetric TBA systems that were first studied by P. Fendley and K. Intriligator.