Meson and tetra-quark mixing
High Energy Physics - Phenomenology
2008-11-26 v1
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.
Keywords
Cite
@article{arxiv.0801.4810,
title = {Meson and tetra-quark mixing},
author = {Ping Wang and Stephen R. Cotanch and Ignacio J. General},
journal= {arXiv preprint arXiv:0801.4810},
year = {2008}
}
Comments
7 pages, 6 figures