On flavor mixing by an effective Light-Cone QCD-Hamiltonian

Details On flavor mixing by an effective Light-Cone QCD-Hamiltonian On flavor mixing by an effective Light-Cone QCD-Hamiltonian

2002-02-19

arxiv.org/abs/hep-ph/0202187v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 8 pages, 1 figure, 6 tables, 8 references. Submitted to Nuclear Physics B (2002)

Scientific paper

The $\uparrow\downarrow$-model has produced the physical masses of all flavor-asymmetric mesons like the $\pi^\pm$ or the $\rho^\pm$. Can the same model also account for the flavor-symmetric mesons like the $\pi^0$ or the $\rho^0$? -- By adjusting one parameter in a $5\times5$-matrix, the $\pi$-$\eta$ degeneracy is lifted and the $\eta-\eta'$ splitting falls into the right ball park. The isospin triplets for pions and rhos are caused the mass-degeneracy of the up and down quark.

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