Notes on Tachyon Effective Actions and Veneziano Amplitudes
High Energy Physics - Theory
2009-11-10 v2
Abstract
In a previous paper (hep-th/0304045) it has been argued that tachyonic Dirac-Born-Infeld (DBI) actions can be obtained from open string theory in a limit, which generalizes the usual massless DBI limit. In the present note we review this construction focusing on a key property of the proposed tachyon effective actions: how they reproduce appropriate Veneziano amplitudes in a suitably defined kinematical region. Possible extensions and interesting open problems are briefly discussed.
Keywords
Cite
@article{arxiv.hep-th/0401066,
title = {Notes on Tachyon Effective Actions and Veneziano Amplitudes},
author = {Vasilis Niarchos},
journal= {arXiv preprint arXiv:hep-th/0401066},
year = {2009}
}
Comments
harvmac, 31 pages, 15 figures; v2 minor text modifications