N. N. Achasov
Published 2020-02-02Version 1
It is shown that all predictions for the light scalars, based on their four-quark nature, are supported by experiment. The future research program is outlined also.
Comments: 10 pages, 14 figures, Invited talk at the International Conference "Problems of Theoretical and Mathematical Physics" dedicated to the 110th anniversary of the birth of the outstanding Russian scientist - mathematician and physicist Nikolai Nikolaevich Bogolyubov, JINR, Dubna, September 11 - 13, 2019. arXiv admin note: text overlap with arXiv:1807.00179
Analytical properties of the $ππ$ scattering amplitude and the light scalar mesons
Problem of Light Scalar Mesons
Analysis on the composite nature of the light scalar mesons $f_{0}(980)$ and $a_0(980)$
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