Higher-point integrands in N = 4 super Yang-Mills theory

We compute the integrands of five-, six-, and seven-point correlation functions of twentyprime operators with general polarizations at the two-loop order in N = 4 super Yang- Mills theory. In addition, we compute the integrand of the five-point function at threeloop order. Using the operator product expansion, we extract the two-loop four-point function of one Konishi operator and three twenty-prime operators. Two methods were used for computing the integrands. The first method is based on constructing an ansatz, and then numerically fitting for the coefficients using the twistor-space reformulation of N = 4 super Yang-Mills theory. The second method is based on the OPE decomposition. Only very few correlator integrands for more than four points were known before. Our results can be used to test conjectures, and to make progresses on the integrability-based hexagonalization approach for correlation functions.

Automated summary

We compute the integrands of correlation functions of twenty-prime operators with general polarizations at the two-loop order and five-point function at three-loop order in N = 4 super Yang-Mills theory. We extract the two-loop four-point function of one Konishi operator and three twenty-prime operators using the operator product expansion. Two methods, ansatz and OPE decomposition, were used for computing the integrands. Our results are important for testing conjectures and making progress in the hexagonalization approach for correlation functions based on integrability.