Phys. Rev. C 72, 028201 (2005) [4 pages]Axial-vector mesons in a relativistic point-form approachReceived 5 December 2004; revised 9 June 2005; published 16 August 2005 The Poincaré invariant coupled-channel formalism for two-particle systems interacting via one-particle exchange, which has been developed and applied to vector mesons, is now applied to axial vector mesons. We thereby extend the previous study of a dynamical treatment of the Goldstone-boson exchange by comparison with the commonly used instantaneous approximation to the case of orbital angular momentum l=1. Effects in the mass shifts show more variations than for the vector-meson case. Results for the decay widths are sizable, but comparison with sparse experimental data is inconclusive. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.72.028201
DOI:
10.1103/PhysRevC.72.028201
PACS:
12.39.Ki, 21.45.+v
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