Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1991-09-10
Phys. Lett. B272 (1991) 272-276
Physics
High Energy Physics
High Energy Physics - Theory
9 pages + 1 figure
Scientific paper
10.1016/0370-2693(91)91830-O
Gauge systems in the confining phase induce constraints at the boundaries of the effective string, which rule out the ordinary bosonic string even with short distance modifications. Allowing topological excitations, corresponding to winding around the colour flux tube, produces at the quantum level a universal free fermion string with a boundary phase nu=1/4. This coincides with a model proposed some time ago in order to fit Monte Carlo data of 3D and 4D Lattice gauge systems better. A universal value of the thickness of the colour flux tube is predicted.
Caselle Michele
Fiore Roberto
Gliozzi Ferdinando
Provero Paolo
Vinti Stefano
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