The string tension in two-dimensional gauge theories

Citation
A. Armoni et J. Sonnenschein, The string tension in two-dimensional gauge theories, INT J MOD P, 14(16), 1999, pp. 2475-2493
Categorie Soggetti
Physics
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN journal
0217751X → ACNP
Volume
14
Issue
16
Year of publication
1999
Pages
2475 - 2493
Database
ISI
SICI code
0217-751X(19990630)14:16<2475:TSTITG>2.0.ZU;2-Y
Abstract
We review and elaborate on properties of the string tension in two-dimensio nal gauge theories. The first model we consider is massive QED in the m << e limit. We evaluate the leading string tension both in the fermionic and bosonized description s. We discuss the next-to-leading corrections in m/e. The next-to-leading t erms in the long distance behavior of the quark-antiquark potential, are ev aluated in a certain region of external versus dynamical charges. The finit e temperature behavior is also determined. In QCD(2) we review the results for the string tension of quarks in cases w ith dynamical quarks in the fundamental, adjoint, symmetric and antisymmetr ic representations. The screening nature of SYM2 is re-derived.