Ultraviolet and Infrared freedom from string amplitudes
High Energy Physics - Theory
2009-10-31 v2
Abstract
The infinite tension limit of string amplitudes is examined with some care, identifying the part responsible of diamagnetic behaviour as well as a peculiar paramagnetic {\em tachyon magnifying} responsible of asymptotic freedom. The way string theory represents abelian gauge theories is connected with the non-planar reggeon/pomeron amplitude and a nontrivial beta function is found in the low energy limit of a single D-brane.
Keywords
Cite
@article{arxiv.hep-th/9907205,
title = {Ultraviolet and Infrared freedom from string amplitudes},
author = {Enrique Alvarez and Cesar Gomez},
journal= {arXiv preprint arXiv:hep-th/9907205},
year = {2009}
}
Comments
LaTeX, 20 pages, 4 figures, two references added