Properties of the light scalar mesons face the experimental data on the {phi}{yields}{pi}{sup 0}{pi}{sup 0}{gamma} decay and the {pi}{pi} scattering
Journal Article
·
· Physical Review. D, Particles Fields
- Laboratory of Theoretical Physics, Sobolev Institute for Mathematics, Novosibirsk, 630090 (Russian Federation)
The high-statistical KLOE data on the {phi}{yields}{pi}{sup 0}{pi}{sup 0}{gamma} decay are described simultaneously with the data on the {pi}{pi} scattering and the {pi}{pi}{yields}KK reaction. The description is carried out taking into account the chiral shielding of the putative {sigma}(600) meson and its mixing with the well-established f{sub 0}(980) meson. It is shown that the data do not contradict the existence of the {sigma}(600) meson and yield evidence in favor of the four-quark nature of the {sigma}(600) and f{sub 0}(980) mesons.
- OSTI ID:
- 20776876
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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