Masses of light tetraquarks and scalar mesons in the relativistic quark model
Abstract
Masses of the ground state light tetraquarks are dynamically calculated in the framework of the relativistic diquark-antidiquark picture. The internal structure of the diquark is taken into account by calculating the form factor of the diquark-gluon interaction in terms of the overlap integral of the diquark wave functions. It is found that scalar mesons with masses below 1 GeV: f0(600) (σ), K*0(800) (), f0(980) and a0(980) agree well with the light tetraquark interpretation.
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