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arXiv · 1311.5330

Color spin wave functions of heavy tetraquark states

Woosung Park·Su Houng Lee
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Abstract

Using the variational method, we calculate the mass of the J^P=1^+ (ud)bar(bb) tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L=0 part of the spatial wave function. We find that for the heavy tetraquark, the 6bar{6} component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.

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Woosung Park, Su Houng Lee. 2013-11-21. Color spin wave functions of heavy tetraquark states. https://doi.org/10.1016/j.nuclphysa.2014.02.008

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