Remark on the effective range approach to the f_0-a_0 mesons

Details Remark on the effective range approach to the f_0-a_0 mesons Remark on the effective range approach to the f_0-a_0 mesons

2004-02-02

arxiv.org/abs/hep-ph/0402022v2

Phys.Lett. B596 (2004) 200-204

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 8 pages, no figures, minor corrections, to appear in Phys.Lett.B

Scientific paper

10.1016/j.physletb.2004.06.084

Discussion of apparently simple issues related to the resonance close to
threshold may lead to misleading results. We clarify some subtle points, in
particular the relation between Breit-Wigner and effective range approaches to
the f_0-a_0 mesons.

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