Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-02-19
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 1 figure
Scientific paper
The light scalar mesons below 1 GeV as tetraquark states are studied in the framework of the flux-tube model, the multi-body confinement instead of the additive two-body confinement is used. From the calculated results, we find that the light scalar mesons, $\sigma$, $\kappa$ could be well accommodated in the diquark-antidiquark tetraquark picture in the flux-tube model and they could be color confinement resonances. The mass of the first radial excited state of $[ud][\bar{u}\bar{d}]$ is 1019 MeV, which is close to the mass of $f_0(980)$. Whereas $a_0(980)$ can not be fitted in this interpretation.
Deng C. R.
Ping J. L.
Wang Faming
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