The String Tension in Two Dimensional Gauge Theories

Details The String Tension in Two Dimensional Gauge Theories The String Tension in Two Dimensional Gauge Theories

1999-03-17

arxiv.org/abs/hep-th/9903153v2

Int.J.Mod.Phys. A14 (1999) 2475-2494

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, Latex. v2: several changes, mainly in section 4

Scientific paper

10.1142/S0217751X99001226

We review and elaborate on properties of the string tension in two-dimensional gauge theories. The first model we consider is massive QED in the $m\ll e$ limit. We evaluate the leading string tension both in the fermionic and bosonized descriptions. We discuss the next to leading corrections in $m/e$. The next-to-leading terms in the long distance behavior of the quark-antiquark potential, are evaluated in a certain region of external versus dynamical charges. The finite temperature behavior is also determined. In $QCD_2$ we review the results for the string tension of quarks in cases with dynamical quarks in the fundamental, adjoint, symmetric and antisymmetric representations. The screening nature of $SYM_2$ is re-derived.

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