Partial widths a 0 ( 980 ) → γγ , f 0 ( 980 ) → γγ and qq̄-classification of the lightest scalar mesons


We calculate partial widths for the decays a0(980) → γγ and f0(980) → γγ under the assumption that a0(980) and f0(980) are members of the basic 1 P0qq̄ nonet. The results are in a reasonable agreement with data thus giving an argument for a qq̄ origin of these mesons. We also calculate the γγ partial widths for the other scalar mesons, members of the 2P0qq… (More)

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