Minimal Basis for Gauge Theory Amplitudes
High Energy Physics - Theory
2009-10-29 v2 High Energy Physics - Phenomenology
Abstract
Identities based on monodromy for integrations in string theory are used to derive relations between different color ordered tree-level amplitudes in both bosonic and supersymmetric string theory. These relations imply that the color ordered tree-level n-point gauge theory amplitudes can be expanded in a minimal basis of (n-3)! amplitudes. This result holds for any choice of polarizations of the external states and in any number of dimensions.
Cite
@article{arxiv.0907.1425,
title = {Minimal Basis for Gauge Theory Amplitudes},
author = {N. E. J. Bjerrum-Bohr and Poul H. Damgaard and Pierre Vanhove},
journal= {arXiv preprint arXiv:0907.1425},
year = {2009}
}
Comments
v2: typos corrected, some rephrasing of the general discussion. Captions to figures added. Version to appear in PRL. 4 pages, 5 figures