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"Spatial string tension revisited"

Relatore: Dr York Schroeder- UniversitÓ di Bielefeld (D)

Sala Feynman
29 Settembre 2005 ore 15.00

The spatial string tension, a classic non-perturbative probe for the convergence of the weak-coupling expansion at high temperatures, can be determined in full QCD as as in a dimensionally reduced effective theory. Comparing both approaches, we find surprisingly good almost down to the critical temperature of the deconfinement phase transition.