Estimates of the physical meson masses by an effective light-cone Hamiltonian

Details Estimates of the physical meson masses by an effective light-cone Hamiltonian Estimates of the physical meson masses by an effective light-cone Hamiltonian

2001-03-23

arxiv.org/abs/hep-ph/0103253v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, 6 tables, 8 references

Scientific paper

A recent renormalization group analysis of the effective light-cone Hamiltonian yields 5 flavor masses and 2 mass shifts as free parameters. These are determined in the present note and used to calculate the masses of all 30 physical mesons (The topped mesons have been omitted). The agreement between experiment and theoretical estimate is quite satisfactory over the whole dynamical range, from the lightest pseudo-scalar mesons like the pion up to the heaviest vector mesons like the upsilon. Evidence for an additive quark model is given and for how the concept of isospin is realized in a gauge field theory such as QCD.

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