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Partial widths a_0(980)\toγγ, f_0(980)\toγγand q\bar q-classification of the lightest scalar mesons

A. V. Anisovich·V. V. Anisovich·D. V. Bugg·V. A. Nikonov
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Abstract

We calculate partial widths for the decays a_0(980)\toγγand f_0(980)\toγγunder the assumption that a_0(980) and f_0(980) are members of the basic 1^3P_0 q\bar q nonet. The results are in a reasonable agreement with data thus giving an argument for a q\bar q origin of these mesons. We also calculate the γγpartial widths for the other scalar mesons, members of the 2^3P_0 q\bar q nonet.

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A. V. Anisovich, V. V. Anisovich, D. V. Bugg, V. A. Nikonov. 1999-03-18. Partial widths a_0(980)\toγγ, f_0(980)\toγγand q\bar q-classification of the lightest scalar mesons. https://doi.org/10.1016/s0370-2693(99)00435-9

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