On the conformal anomaly of k-strings
High Energy Physics - Lattice
2009-04-14 v1
Abstract
We discuss the long distance behaviour of the flux tube associated to baryon vertices and argue that, if the gauge system admits stable k-strings, the conformal field theory describing this string in the IR has conformal anomaly c=(d-2)\sigma_k/\sigma, where \sigma_k is the k-string tension and \sigma that of the fundamental representation. We check this result in a 3D Z_4 gauge model at finite temperature, where a string effect directly related to "c" can be clearly identified.
Cite
@article{arxiv.0710.0764,
title = {On the conformal anomaly of k-strings},
author = {Pietro Giudice and Ferdinando Gliozzi and Stefano Lottini},
journal= {arXiv preprint arXiv:0710.0764},
year = {2009}
}
Comments
7 pages, 5 figures; Talk presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, Germany