A NOTE ON N=2 SUPERSTRINGS
Jadwiga Bieńkowska, Hong Lu · Modern Physics Letters A · 1992
In this note we investigate the generalized critical N=2 superstrings in (1, 2p) spacetime signature. We calculate the four-point functions for the tachyon operators of these theories. In contrast to the usual N=2 superstring in (2, 2) space-time, the four-point functions do not vanish. The exchanged particles of the four-point function are included in the physical spectrum of the corresponding theory and have vanishing fermion charge.