On the flavor mixing by a Light-Cone Hamiltonian and the isotopic spin in QCD

Details On the flavor mixing by a Light-Cone Hamiltonian and the isotopic spin in QCD On the flavor mixing by a Light-Cone Hamiltonian and the isotopic spin in QCD

2001-03-23

arxiv.org/abs/hep-ph/0103254v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures, 6 tables, 10 references; 3 typos removed

Scientific paper

The structure of an effective light-cone Hamiltonian as recently derived is analyzed with emphasis on its prediction for flavor mixing in physical mesons. In a (perhaps over-simplified) model with one adjustable parameter, the empirical masses of all 25 pseudo-scalar mesons which are possible for 5 flavors are reproduced (almost) quantitatively. These results are coupled with explicit numerical estimates of flavor mixing. In the present approach, the well-known mass degeneracy of the pion triplet is caused by the mass degeneracy of the up and down quark.

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