Abstract
We analyze the mass spectroscopy of low and high mass scalar mesons and get the result that the coupling strengths of the mixing between low and high mass scalar mesons are very strong and the strengths of mixing among I = 1, 1/2 scalar mesons and those among I = 0 scalar mesons are almost same. Next, we analyze the decay widths and ratios of these mesons and get the results that the coupling constants A′ for I = 1, 1/2 which represents the coupling of high mass scalar meson N′ → pseudoscalar mesons PP are almost same as the coupling A′ for the I = 0. On the other hand, the coupling constant A for I = 1, 1/2 which represents the low mass scalar meson N → PP are far from the coupling constant A for I = 0. We consider a resolution of this discrepancy.
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