On the coupling $g_{f_0K^+K^-}$ and the structure of $f_0(980)$

Fulvia De Fazio

arxiv: hep-ph/0310170 · v1 · pith:YUCWSXL5new · submitted 2003-10-14 · ✦ hep-ph

On the coupling g_(f₀K^+K^-) and the structure of f₀(980)

Fulvia De Fazio This is my paper

classification ✦ hep-ph

keywords couplinganalysesconcerningdeterminationsentersevaluatelargerlight-cone

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We use light-cone QCD sum rules to evaluate the strong coupling $g_{f_0 K^+ K^-}$ which enters in several analyses concerning the scalar $f_0(980)$ meson. The result: $6.2\le g_{f_0 K^+ K^-}\le 7.8$ GeV is larger than in previous determinations.

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On the coupling g_(f₀K^+K^-) and the structure of f₀(980)

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