Light Scalar Mesons
N. N. Achasov
Abstract
The crucial points of physics of light scalar mesons are discussed. The special attention is given to the chiral shielding of lightest scalar mesons and the production of the well established light scalar mesons in the ϕradiative decays. Arguments in favor of the four-quark model of the a0(980) and f0(980) mesons are given.
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