Meson and tetra-quark mixing

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dc.creatorWang, Ping
dc.creatorCotanch, Stephen R.
dc.creatorGeneral, Ignacio J.
dc.date2008-01-31
dc.date.accessioned2026-07-07T11:40:04Z
dc.date.available2026-07-07T11:40:04Z
dc.descriptionThe 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.
dc.description7 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0801.4810
dc.identifierhttp://arxiv.org/abs/0801.4810
dc.identifierEur.Phys.J.C55:409-415,2008
dc.identifierdoi:10.1140/epjc/s10052-008-0605-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200141
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMeson and tetra-quark mixing
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