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

Dalibor Kekez·Dubravko Klabucar·Michael D. Scadron
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Abstract

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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Dalibor Kekez, Dubravko Klabucar, Michael D. Scadron. 2001-06-13. Dynamical SU(3) linear sigma model and the mixing of eta'-eta and sigma-f_0 mesons. https://doi.org/10.1088/0954-3899%2F27%2F8%2F307

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