String effects and the distribution of the glue in static mesons at finite temperature

Abstract

3. The right to use all or part of the Article, including the APS-prepared version without revision or modification, on the author(s)' web home page or employer's website and to make copies of all or part of the Article, including the APS-prepared version without revision or modification, for the author(s)' and/or the employer's use for educational or research purposes." th June 2013String effects and the distribution of the glue in static mesons at finite temperature The distribution of the gluon action density in mesonic systems is investigated at finite temperature. The simulations are performed in quenched QCD for two temperatures below the deconfinement phase. Unlike the gluonic profiles displayed at T ¼ 0, the action-density isosurfaces display a prolate-spheroid-like shape. The curved width profile of the flux tube is found to be consistent with the prediction of the free bosonic string model at large distances.

SU(3) quark-antiquark QCD flux tube

“…We confirm earlier results [7,8] that point to a logarithm widening in the mediator plane of the flux-tube, in agreement with the results of quantum string models [3]. Moreover, we also show that, at large quark-antiquark distances, the flux tube profile is not Gaussian but exponential as in a superconductor [9].…”

Flux tubes in the QCD vacuum

“…In several other recent works [23,[55][56][57][58][59][60] also the detailed profile of the color field distribution near static sources has been analyzed.…”

Linear broadening of the confining string in Yang-Mills theory at low temperature

“…Numerical evidence for linear string broadening at finite temperature was presented for fluctuating interfaces in the 3-d Ising model in [21,22] and, recently, for (3 + 1)-d SU (3) Yang-Mills theory in [23]. In this paper, using the Lüscher-Weisz multi-level simulation technique, we perform very accurate Monte Carlo calculations of the temperature-dependent string width in (2 + 1)-d SU (2) Yang-Mills theory.…”