Three-body force and the tetraquark interpretation of light scalar mesons

  • We study the possible tetraquark interpretation of light scalar meson states a0(980), f0(980), κ,σ within the framework of the non-relativistic potential model. The wave functions of tetraquark states are obtained in a space spanned by
    multiple Gaussian functions. We find that the mass spectra of the light scalar mesons can be well accommodated in the tetraquark picture if we introduce a three-body quark interaction in the quark model. Using the obtained multiple Gaussian wave functions, the decay constants of tetraquarks are also calculated within the ``fall apart'' mechanism.

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ZOU Fan-Yong, CHEN Xiao-Lin and DENG Wei-Zhen. Three-body force and the tetraquark interpretation of light scalar mesons[J]. Chinese Physics C, 2008, 32(7): 515-520. doi: 10.1088/1674-1137/32/7/002
ZOU Fan-Yong, CHEN Xiao-Lin and DENG Wei-Zhen. Three-body force and the tetraquark interpretation of light scalar mesons[J]. Chinese Physics C, 2008, 32(7): 515-520.  doi: 10.1088/1674-1137/32/7/002 shu
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Received: 2007-10-24
Revised: 2008-02-18
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Three-body force and the tetraquark interpretation of light scalar mesons

    Corresponding author: DENG Wei-Zhen,

Abstract: 

We study the possible tetraquark interpretation of light scalar meson states a0(980), f0(980), κ,σ within the framework of the non-relativistic potential model. The wave functions of tetraquark states are obtained in a space spanned by
multiple Gaussian functions. We find that the mass spectra of the light scalar mesons can be well accommodated in the tetraquark picture if we introduce a three-body quark interaction in the quark model. Using the obtained multiple Gaussian wave functions, the decay constants of tetraquarks are also calculated within the ``fall apart'' mechanism.

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