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

B. Kerbikov
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Abstract

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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B. Kerbikov. 2004-06-24. Remark on the effective range approach to the f_0-a_0 mesons. https://doi.org/10.1016/j.physletb.2004.06.084

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