Semiclassical Meson-Baryon Dynamics from Large-Nc QCD

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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(13 pages, 1 figure, uses harvmac and uufiles), UCSD/PTH 94-14

Scientific paper

10.1016/0370-2693(94)90564-9

The large-$N_c$ limit of the meson-baryon effective Lagrangian is shown to reduce to a semiclassical field theory. A chiral bag structure emerges naturally in the $N_c\rightarrow \infty$ limit. A possible connection between the chiral bag picture and the Skyrme model is discussed. The classical meson-baryon theory is used to reproduce the $M_\pi^3$ non-analytic correction to the baryon mass obtained previously as a loop correction in chiral perturbation theory.

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