Higher Point Spin Field Correlators in D=4 Superstring Theory
Abstract
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. The latter are basic ingredients to compute multi-fermion superstring amplitudes in D=4. Their underlying fermionic structure and the fermionic couplings in the effective action are determined by these correlators.
Cite
@article{arxiv.0911.5168,
title = {Higher Point Spin Field Correlators in D=4 Superstring Theory},
author = {D. Haertl and O. Schlotterer and S. Stieberger},
journal= {arXiv preprint arXiv:0911.5168},
year = {2011}
}
Comments
61 pages, LaTeX; v2: enlarged introduction; final version to appear in NP B; v3: little typos removed