In the present paper we discuss various aspects of the ’t Hooft model for two-dimensional QCD in the limit of an infinite number of colors in the Coulomb gauge. The properties of mesonic excitations are addressed, with special attention paid to the pionic one. The twofold role of the pion is discussed: being a genuine q \-{q} state it is also a Goldstone boson of two-dimensional QCD. In particular, it is demonstrated explicitly how the soft-pion theorems are satisfied. It is pointed out that the Coulomb-gauge choice seems to be indispensable in studies of hadronic observables with the pions involved.

PACS: 11.10.Kk, 11.15.Pg, 12.38.Aw (all) DOI: 10.1070/PU2002v045n04ABEH001070 URL: https://ufn.ru/en/articles/2002/4/a/ 000177340900001 Citation: Kalashnikova Yu S, Nefed’ev A V "Two-dimensional QCD in the Coulomb gauge" Phys. Usp. 45 347–368 (2002) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Оригинал: Калашникова Ю С, Нефедьев А В «Двумерная КХД в кулоновской калибровке» УФН 172 377–400 (2002); DOI: 10.3367/UFNr.0172.200204a.0377