Fermionic superstring loop amplitudes in the pure spinor formalism
High Energy Physics - Theory
2009-11-13 v2
Abstract
The pure spinor formulation of the ten-dimensional superstring leads to manifestly supersymmetric loop amplitudes, expressed as integrals in pure spinor superspace. This paper explores different methods to evaluate these integrals and then uses them to calculate the kinematic factors of the one-loop and two-loop massless four-point amplitudes involving two and four Ramond states.
Cite
@article{arxiv.0704.0015,
title = {Fermionic superstring loop amplitudes in the pure spinor formalism},
author = {Christian Stahn},
journal= {arXiv preprint arXiv:0704.0015},
year = {2009}
}
Comments
22 pages; signs and coefficients adjusted for anticommuting superfields, section 4.3 changed accordingly, reference added