Prescriptions for Off-Shell Bosonic String Amplitudes
High Energy Physics - Theory
2014-11-18 v2
Abstract
We give, in the framework of the bosonic string theory, simple prescriptions for computing, at tree and one-loop levels, off-shell string amplitudes for open and closed string massless states. In particular we obtain a tree amplitude for three open strings that in the field theory limit coincides with the three-gluon vertex in the usual covariant gauge and two-string one-loop amplitudes satisfying the property of transversality.
Cite
@article{arxiv.hep-th/9812152,
title = {Prescriptions for Off-Shell Bosonic String Amplitudes},
author = {L. Cappiello and A. Liccardo and R. Pettorino and F. Pezzella and R. Marotta},
journal= {arXiv preprint arXiv:hep-th/9812152},
year = {2014}
}
Comments
11 pages, LaTeX, to appear in the proceedings of the workshop "Quantum Aspects of Gauge Theories, Supersymmetry and Unification", Corfu (Greece), 20-26 September 1998. Eq. (12) and numerical factors in eqs. (13) and (16) corrected; some minor changes and references added