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

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

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 -- b 1 (1235) , h 1 (1170) , h 1 (1380) , a 1 (1260) , f 1 (1285) and the two states associat...

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Veröffentlicht in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2009, Vol.39 (1), p.81-87
Hauptverfasser: Geng, L. S., Oset, E., Peláez, J. R., Roca, L.
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
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Zusammenfassung: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 -- b 1 (1235) , h 1 (1170) , h 1 (1380) , a 1 (1260) , f 1 (1285) and the two states associated to the K 1 (1270) -- does not follow the QCD dependence on the number of colors for ordinary q mesons.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2008-10689-y