On the nature of the a<sub>0</sub>(980) and f<sub>0</sub>(980) scalar mesons

N.N. Achasov
S.L. Sobolev Institute for Mathematics, Siberian Branch of the Russian Academy of Sciences, prosp. akad. Koptyuga 4, Novosibirsk, 630090, Russian Federation

The unusual properties of the a₀(980) and f₀(980) scalar mesons are discussed in terms of the four-quark, two-quark, and molecular models. Arguments in favor of the four-quark model are given. Further studies needed to resolve the problem are discussed.

PACS: 12.39.−x, 12.39.Mk, 14.40.Cs (all)
DOI: 10.1070/PU1998v041n11ABEH000507
URL: https://ufn.ru/en/articles/1998/11/g/
Web of Science

000077738800006
Citation: Achasov N N "On the nature of the a₀(980) and f₀(980) scalar mesons" Phys. Usp. 41 1149–1153 (1998)

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Оригинал: Ачасов Н Н «О природе скалярных a₀(980)- и f₀(980)-мезонов» УФН 168 1257–1261 (1998); DOI: 10.3367/UFNr.0168.199811g.1257

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On the nature of the a0(980) and f0(980) scalar mesons

On the nature of the a₀(980) and f₀(980) scalar mesons