Pseudoscalar mesons and their radial excitations from the effective chiral Lagrangian

2003/06/30 by S. M. Fedorov, С. М. Федоров, Yu. A. Simonov · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1134/1.1615529

published as JETP Lett. 78 (2003) 57-62; Pisma Zh.Eksp.Teor.Fiz. 78 (2003) 67-72 · 6 pages; v3: minor corrections, references added

openalex publication_date 2003/07/01 · arxiv created 2003/07/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

The effective chiral Lagrangian is derived from QCD in the framework of the 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. The spectrum of radial excitations of pions and K mesons is found and compared to experimentally known masses.

Citations

• Chiral perturbation theory to one loop

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