Journal Article

PreJuSER-50241

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Flatté-like distributions and the a0(980)/f0(980) mesons

Baru, V.FZJ* ; Haidenbauer, J.FZJ* ; Hanhart, C.FZJ* ; Kudryavtsev, A. ; Meissner, U. G.FZJ*

2005
Springer Berlin

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Please use a persistent id in citations: http://hdl.handle.net/2128/10649  doi:10.1140/epja/i2004-10105-x

Abstract: We explore the features of Flatte-like parametrizations. In particular, we demonstrate that the large variation in the absolute values of the coupling constants to the pieta ( or pipi) and K (K) over bar the a(0)(980) and f(0)(980) mesons that one can find in the literature can be explained by a specific scaling behaviour of the Flatte amplitude for energies near the K (K) over bar threshold. We argue that the ratio of the coupling constants can be much better determined from a fit to experimental data.

Keyword(s): meson meson: elastic scattering ; meson meson: inelastic scattering ; pi ; eta ; K anti-K: threshold ; differential cross section ; parametrization ; scaling ; a0(980) ; f0(980) ; scalar meson: coupling constant ; channel cross section: energy dependence ; scattering amplitude: analytic properties ; partial wave analysis ; numerical calculations

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen (M01)

Appears in the scientific report 2005

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Database coverage:

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