Two-dimensional QCD in the Coulomb gauge

Yu.S. Kalashnikova, A.V. Nefed’ev
Russian Federation State Scientific Center ‘A.I. Alikhanov Institute of Theoretical and Experimental Physics’, ul. Bolshaya Cheremushkinskaya 25, Moscow, 117259, Russian Federation

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/
Web of Science

000177340900001
Citation: Kalashnikova Yu S, Nefed’ev A V "Two-dimensional QCD in the Coulomb gauge" Phys. Usp. 45 347–368 (2002)

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Оригинал: Калашникова Ю С, Нефедьев А В «Двумерная КХД в кулоновской калибровке» УФН 172 377–400 (2002); DOI: 10.3367/UFNr.0172.200204a.0377

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