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

Details 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

2008-11-12

arxiv.org/abs/0811.1941v1

Eur.Phys.J.A39:81-87,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 figures, to be published in EPJA

Scientific paper

10.1140/epja/i2008-10689-y

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 qqbar mesons.

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