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| Paper IPM / Physic / 15196 |
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| Abstract: | |||||||
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The partial width of the decay channels f0(500) → ππ, f0(980)→ ππ and f0(980) → K ―K are calculated using QCD light-cone
sum rules method and a technique of the soft meson approximation. The scalar
particles are treated as mixtures of the heavy |H〉 = ([su][―s ―u]+[sd][―s ―d])/√2 and light |L〉 = [ud][―u ―d]
scalar diquark-antidiquark components. Obtained results for the full width
of the f0(500) meson Γth.=408.8±84.8 MeV and for the f0(980) meson Γth.=34.71±7.26MeV are compared with the world averages for these parameters, and
a reasonable agreement between them is found.
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