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

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

2009-05-26

arxiv.org/abs/0905.4195v3

Phys.Lett.B682:253-258,2009

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 6 figures; v2 : References added for chapter II; v3: A new subsection discussing finite volume effects has been inclu

Scientific paper

10.1016/j.physletb.2009.11.010

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.

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