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arXiv · 0801.4810

Meson and tetra-quark mixing

Ping Wang·Stephen R. Cotanch·Ignacio J. General
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Abstract

The mixing between q-qbar meson and qqbar-qqbar tetra-quark states is examined within an effective QCD Coulomb gauge Hamiltonian model. Mixing matrix elements of the Hamiltonian are computed and then diagonalized yielding an improved prediction for the low-lying J^{PC} = 0^{+/- +}, 1^{--} isoscalar spectra. Mixing effects were found significant for the scalar hadrons but not for the 1^{--} states, which is consistent with the ideal mixing of vector mesons. A perturbative assessment of the exact QCD kernel is also reported.

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Ping Wang, Stephen R. Cotanch, Ignacio J. General. 2008-01-31. Meson and tetra-quark mixing. https://doi.org/10.1140/epjc%2Fs10052-008-0605-7

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