Improved results for N = (2, 2) super Yang–Mills theory using supersymmetric discrete light-cone quantization

We consider the (1+1)-dimensional N = (2, 2) super Yang–Mills theory which is obtained by dimensionally reducing N = 1 super Yang–Mills theory in four dimension to two dimensions. We do our calculations in the large-Nc approximation using Supersymmetric Discrete Light Cone Quantization. The objective is to calculate quantities that might be investigated by researchers using other numerical methods. We present a precision study of the low-mass spectrum and the stress-energy correlator 〈T++(r)T++(0)〉. We find that the mass gap of this theory closes as the numerical resolution goes to infinity and that the correlator in the intermediate r region behaves like r−4.75.