Higher Point Spin Field Correlators in D=4 Superstring Theory

Understand

Calculational tools are provided allowing to determine general tree-level scattering amplitudes for processes involving bosons and fermions in heterotic and superstring theories in four space-time dimensions.

• We compute higher-point superstring correlators involving massless four-dimensional fermionic and spin fields.
• In D=4 these correlators boil down to a product of two pure spin field correlators of left- and right-handed spin fields.
• This observation greatly simplifies the computation of such correlators.