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Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian

S. M. Fedorov·Yu. A. Simonov
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Abstract

Effective Chiral Lagrangian is derived from QCD in the framework of Field Correlator Method. It contains the effects of both confinement and chiral symmetry breaking due to a special structure of the resulting quark mass operator. It is shown that this Lagrangian describes light pseudoscalar mesons, and Gell-Mann-Oakes-Renner relations for pions, eta and K mesons are reproduced. Spectrum of radial excitations of pions and K mesons is found and compared to experimentally known masses.

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S. M. Fedorov, Yu. A. Simonov. 2003-07-03. Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian. https://doi.org/10.1134/1.1615529

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