Spectrum of the QCD flux tube in 3d SU(2) lattice gauge theory

Abstract

Evidence from the lattice suggests that formation of a flux tube between a $q\bar{q}$ pair in the QCD vacuum leads to quark confinement. For large separations between the quarks, it is conjectured that the flux tube has a behaviour similar to an oscillating bosonic string, supported by lattice data for the groundstate $q\bar{q}$ potential. We measure the excited states of the flux tube in 3d SU(2) gauge theory with three different couplings inside the scaling region. We compare our results to predictions of effective string theories.

7 pages, 6 figures; v2 : References added for chapter II; v3: A new subsection discussing finite volume effects has been included. Revised version to match published version

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Cited by in corpus (19)

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• The Width of the Color Flux Tube at 2-Loop Order
• Spectrum of the open QCD flux tube and its effective string description I: 3d static potential in SU(N=2,3)
• Large N and confining flux tubes as strings - a view from the lattice
• Linear broadening of the confining string in Yang-Mills theory at low temperature
• The static hybrid potential in D dimensions at short distances
• Intrinsic Thickness of QCD Flux-Tubes
• Boundary Operators in Effective String Theory
• Recent results in large-N lattice gauge theories
• Revisiting the flux tube spectrum of 3d SU(2) lattice gauge theory
• Heavy Quark Potential from Gauge/Gravity Duality: A Large D Analysis
• Universal rapidity scaling of entanglement entropy inside hadrons from conformal invariance
• Induced QCD with two auxiliary bosonic fields
• Induced QCD II: Numerical results