Conformal Invariance and Degrees of Freedom in the QCD String
High Energy Physics - Theory
2009-10-22 v2 High Energy Physics - Phenomenology
Abstract
We demonstrate that the Hagedorn-like growth of the number of observed meson states can be used to constrain the degrees of freedom of the underlying effective QCD string. We find that the temperature relevant for such string theories is not given by the usual Hagedorn value MeV, but is considerably higher. This resolves an apparent conflict with the results from a static quark-potential analysis, and suggests that conformal invariance and modular invariance are indeed reflected in the hadronic spectrum. We also find that the scalar string is in excellent agreement with data.
Keywords
Cite
@article{arxiv.hep-th/9309126,
title = {Conformal Invariance and Degrees of Freedom in the QCD String},
author = {Keith R. Dienes and Jean-Rene Cudell},
journal= {arXiv preprint arXiv:hep-th/9309126},
year = {2009}
}
Comments
13 pages (Standard LaTeX); --> replaced version emphasizes new results, and agrees with version to appear in Physical Review Letters (Jan 1994)