On off-shell bosonic string amplitudes
High Energy Physics - Theory
2009-10-31 v2
Abstract
We give a simple prescription for computing, in the framework of the bosonic string theory, off-shell one-loop amplitudes with any number of external massless particles, both for the open and for the closed string. We discuss their properties and, in particular, for the two-string one-loop amplitudes we show their being transverse.
Cite
@article{arxiv.hep-th/9804032,
title = {On off-shell bosonic string amplitudes},
author = {L. Cappiello and R. Marotta and R. Pettorino and F. Pezzella},
journal= {arXiv preprint arXiv:hep-th/9804032},
year = {2009}
}
Comments
12 pages, Latex. One reference added. Introduction and conclusions expanded. Some other minor changes in the text