Chinese Physics C > 2013, Vol. 37 > Issue(3): 033101 DOI: 10.1088/1674-1137/37/3/033101

Dynamical study of light scalar mesons below 1 GeV in a flux-tube model

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Abstract：
The light scalar mesons below 1 GeV configured as tetraquark systems are studied in the framework of the flux-tube model. Comparative studies indicate that a multi-body confinement, instead of the additive two-body confinement, should be used in a multiquark system. The σ and κ mesons could be well accommodated in the diquark-antidiquark tetraquark picture, and could be colour-confinement resonances. The m a ₀(980) and m f ₀(980) mesons are not described as m K Kmolecular states and ns n sdiquark-antidiquark states. However, the mass of the first radial excited state of the diquark-antidiquark state, nn n nis 1019 MeV, is close to the experimental data of the m f ₀(980).

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DENG Cheng-Rong, PING Jia-Lun, ZHOU Ping and WANG Fan. Dynamical study of light scalar mesons below 1 GeV in a flux-tube model[J]. Chinese Physics C, 2013, 37(3): 033101. doi: 10.1088/1674-1137/37/3/033101

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Received: 2012-03-31
Revised: 2012-10-13

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Dynamical study of light scalar mesons below 1 GeV in a flux-tube model

Corresponding author:PING Jia-Lun,

Received Date:2012-03-31
Accepted Date:2012-10-13
Available Online:2013-03-05

Abstract:The light scalar mesons below 1 GeV configured as tetraquark systems are studied in the framework of the flux-tube model. Comparative studies indicate that a multi-body confinement, instead of the additive two-body confinement, should be used in a multiquark system. The σ and κ mesons could be well accommodated in the diquark-antidiquark tetraquark picture, and could be colour-confinement resonances. The m a₀(980) and m f₀(980) mesons are not described as m KKmolecular states and nsnsdiquark-antidiquark states. However, the mass of the first radial excited state of the diquark-antidiquark state, nnnnis 1019 MeV, is close to the experimental data of the m f₀(980).