Nature of the axial-vector mesons from their Nc behavior within the chiral unitary approach

2008/11/12 by L. S. Geng, Li‐Sheng Geng, E. Oset +3 · 1 citation
Physics and Astronomy · #Boson #Goldstone boson #High-Energy Particle Collisions Research #Meson #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Unitary state #Vector meson #hep-ph

paper · pdf · doi:10.1140/epja/i2008-10689-y

published as Eur.Phys.J.A39:81-87,2009 · 18 pages, 5 figures, to be published in EPJA

arxiv created 2008/11/12 · openalex publication_date 2008/12/15 · arxiv updated 2010/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

By describing within the chiral unitary approach the s-wave interaction of the vector meson nonet with the octet of pseudoscalar Goldstone Bosons, we find that the main component of the axial vector mesons b₁(1235), h₁(1170), h₁(1380), a₁(1260), f₁(1285) and the two states associated to the K₁(1270) does not follow the QCD dependence on the number of colors for ordinary qqbar mesons.

Citations

• Chiral symmetry amplitudes in the S-wave isoscalar and isovector channels and the σ, f0(980), a0(980) scalar mesons
• Nature of Light Scalar Mesons from their Large-NcBehavior
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• LargeNcWeinberg-Tomozawa interaction and negative paritys-wave baryon resonances
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• Clues for the existence of twoK1(1270)resonances
• Ordinary and Extraordinary Hadrons
• scattering amplitude to one loop in chiral perturbation theory, its unitarization and pion form factors
• A planar diagram theory for strong interactions
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• Phenomenological Lagrangians

Cited by

• Pseudoscalar meson and vector meson interactions and dynamically generated axial-vector mesons