Extremal correlators in four-dimensional SCFT

B. Eden, P. S. Howe, C. Schubert, E. Sokatchev, P. C. West

Published 1999-10-18Version 1

It is shown that certain extremal correlators in four-dimensional N=2 superconformal field theories (including N=4 super-Yang-Mills as a special case) have a free-field functional form. It is further argued that the coupling constant dependence receives no correction beyond the lowest order. These results hold for any finite value of N_c.