Dynamical SU(3) linear sigma model and the mixing of eta'-eta and sigma-f_0 mesons

Details Dynamical SU(3) linear sigma model and the mixing of eta'-eta and sigma-f_0 mesons Dynamical SU(3) linear sigma model and the mixing of eta'-eta and sigma-f_0 mesons

2001-01-29

arxiv.org/abs/hep-ph/0101324v2

J.Phys.G27:1775-1784,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure, elsart; version to appear in J. Phys. G, appendix added, some typos corrected

Scientific paper

10.1088/0954-3899/27/8/307

The SU(3) linear sigma model is dynamically generated in loop-order using the nonstrange-strange basis. Only self-consistent logarithmic divergent graphs are needed, with quadratic divergent graphs replaced by SU(3) mass-shell equal splitting laws. The latter lead to an eta'-eta mixing angle of 41.84 deg which is consistent with phenomenology. Finally this above SU(3) linear sigma model in turn predicts strong decay rates which are all compatible with data.

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