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- W83037218 abstract "We consider quantum chromodynamics without quarks, dimensionally continued to 2+epsilon dimensions. Perturbation theory for this model is shown to be highly infrared singular, and the theory, order by order, is not smoothly connected to the two-dimensional theory. We show that with a certain selective resummation of diagrams one can control these divergences, and obtain a structure very similar to that of the 't Hooft model for mesons. The model is then in fact equivalent to the large-N limit of two-dimensional quantum chromodynamics with massless scalar particles in the fundamental representation. The two-gluon bound-state equation which we obtain, however, is itself infrared singular and possesses no normalizable solutions. We discuss this problem in the context of an analog scalar model, and speculate on its possible resolution." @default.
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- W83037218 date "1981-01-15" @default.
- W83037218 modified "2023-09-26" @default.
- W83037218 title "Quantum chromodynamics in2+εdimensions" @default.
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- W83037218 doi "https://doi.org/10.1103/physrevd.23.451" @default.
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