The infrared limit of QCD effective string

Details The infrared limit of QCD effective string The infrared limit of QCD effective string

1992-10-06

arxiv.org/abs/hep-lat/9210007v1

Acta Phys.Polon.B23:971-990,1992

Physics

High Energy Physics

High Energy Physics - Lattice

24 pages (latex), DFTT- 45/92

Scientific paper

Some model-independent properties of the effective string of gauge field systems in the confining phase , for very large quark separations, are described in terms of two-dimensional conformal field theories. The constraints induced by the gauge theory at the boundaries of the effective string induce a Coulomb- like term in the interquark potential which is universal, but different from the one proposed by L\"uscher. Some universal relations among the string tension, the thickness of the colour flux tube, the location of the deconfining temperature and a lower bound of the glueball spectrum are discussed. (Lectures given at the XXXII Cracow School of Theoretical Physics, Zakopane, Poland 2-12 June 1992)

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