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arXiv · 0710.4365

The Three-body Force and the Tetraquark Interpretation of Light Scalar Mesons

Fang-Yong Zou·Xiao-Lin Chen·Wei-Zhen Deng
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Abstract

We study the possible tetraquark interpretation of light scalar meson states $a_0(980)$, $f_0(980)$, $\kappa$, $\sigma$ 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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Fang-Yong Zou, Xiao-Lin Chen, Wei-Zhen Deng. 2007-10-24. The Three-body Force and the Tetraquark Interpretation of Light Scalar Mesons. https://doi.org/10.1088/1674-1137/32/7/002

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