Spectrum of k-string tensions in SU(N) gauge theories
L. Del Debbio, H. Panagopoulos, P. Rossi, E. Vicari
TL;DR
This paper uses lattice Monte Carlo simulations to compute k-string tensions in SU(4) and SU(6) gauge theories, finding results consistent with a sine law and deviations from Casimir scaling.
Contribution
It provides the first detailed lattice calculation of k-string tensions in SU(4) and SU(6), confirming the sine law dependence and highlighting deviations from Casimir scaling.
Findings
String tensions follow a sine law pattern.
Deviations from Casimir scaling are observed.
Results support theoretical predictions for k-string behavior.
Abstract
We compute, for the four-dimensional SU(4) and SU(6) gauge theories formulated on a lattice, the string tensions sigma_k related to sources with Z_N charge k, using Monte Carlo simulations. Our results are compatible with sigma_k \propto sin (k pi/N), and show sizeable deviations from Casimir scaling.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies