The strong decays of the light scalar mesons f0(500) and f0(980)
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KünyeAgaev, S. S., Azizi, K., Sundu, H. (2018). The strong decays of the light scalar mesons f0(500) and f0(980). Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 784, 266-270. https://doi.org/10.1016/j.physletb.2018.07.042
The partial width of the decay channels f0(500)→ππ f0(980)→ππ and f0(980)→KK¯ 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.=434.7±72.3MeV and for the f0(980) meson Γth.=42.12±6.70MeV are compared with the world averages for these parameters, and a reasonable agreement between them is found.