Intermediate-Distance String Effects in Wilson Loops\\ via Boundary Action
Abstract
The density profile of the QCD flux tube is investigated within the framework of the L\"uscher-Weisz (LW) string action with two boundary terms. The transverse action profile and potential between static quarks are considered using Wilson's loop overlap formalism at zero temperature in SU(2) Yang-Mills theory. We find the predictions of the LW string matching the lattice data for the width of the energy-density and QQ potential up to a small color-source separation of R=0.32\,fm.
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