On the conformal anomaly of k-strings

Details On the conformal anomaly of k-strings On the conformal anomaly of k-strings

2007-10-03

arxiv.org/abs/0710.0764v1

PoSLAT2007:302,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 5 figures; Talk presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regens

Scientific paper

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.

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