Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian

Details Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian

2003-06-23

arxiv.org/abs/hep-ph/0306216v3

JETP Lett. 78 (2003) 57-62; Pisma Zh.Eksp.Teor.Fiz. 78 (2003) 67-72

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages; v3: minor corrections, references added

Scientific paper

10.1134/1.1615529

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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