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

ZOU Fan-Yong; CHEN Xiao-Lin; DENG Wei-Zhen

doi:10.1088/1674-1137/32/7/002

Chinese Physics C> 2008, Vol. 32> Issue(7) : 515-520 DOI: 10.1088/1674-1137/32/7/002

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

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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.

References

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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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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: DENG Wei-Zhen,

Received Date: 2007-10-24

Accepted Date: 2008-02-18

Available Online: 2008-07-05

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

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