The low lying axial-vector mesons as dynamically generated resonances

Journal Article · Sat Feb 11 04:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2176526· OSTI ID:20798116

Roca, L; Oset, E; Singh, J ^[1]

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1. Departamento de Fisica Teorica, Institutos de Investigacion de Paterna, Aptdo. 22085, 46071 Valencia (Spain)

We make a theoretical study of the s-wave interaction of the nonet of vector mesons with the octet of pseudoscalar mesons starting from a chiral invariant Lagrangian and implementing unitarity in coupled channels. By looking for poles in the unphysical Riemann sheets of the unitarized scattering amplitudes, we get two octets and one singlet of axial-vector dynamically generated resonances. The poles found can be associated to most of the low lying axial-vector resonances quoted in the Particle Data Book: b1(1235), h1(1170), h1(1380), a1 (1260), f1(1285) and two poles to the K1(1270) resonance. We evaluate the couplings of the resonances to the VP states and the partial decay widths in order to reinforce the arguments in the discussion.

• OSTI ID: 20798116
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 814; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A1-1260 MESONS
B MESONS
B1-1235 MESONS
CHIRALITY
COUPLED CHANNEL THEORY
D S MESONS
F1-1285 MESONS
H1-1170 MESONS
K1-1270 MESONS
LAGRANGIAN FUNCTION
MESON NONETS
PARTICLE DECAY
PARTICLE WIDTHS
RESONANCE PARTICLES
RIEMANN SHEET
S WAVES
SCATTERING AMPLITUDES
UNITARITY
VECTOR DOMINANCE MODEL
VECTOR MESONS