Equivalence Proof of Pure Spinor and Ramond-Neveu-Schwarz Superstring Amplitudes
High Energy Physics - Theory
2025-04-23 v2
Abstract
A new manifestly spacetime-supersymmetric prescription for superstring amplitude computations is given using the pure spinor formalism which does not contain subtleties from poles in the pure spinor ghosts. This super-Poincare covariant prescription is related by a U(5)-covariant field redefinition to the Ramond-Neveu-Schwarz amplitude prescription where the pure spinor parameterizes the choice of SO(10)/U(5). For F-term scattering amplitudes which preserve a subset of the spacetime supersymmetries, the new pure spinor amplitude prescription reduces to the previous pure spinor prescription.
Keywords
Cite
@article{arxiv.2411.19778,
title = {Equivalence Proof of Pure Spinor and Ramond-Neveu-Schwarz Superstring Amplitudes},
author = {Nathan Berkovits},
journal= {arXiv preprint arXiv:2411.19778},
year = {2025}
}
Comments
8 pages harvmac tex. Fixed typos and added a few clarifying comments