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

Kekez, Dalibor; Klabucar, Dubravko; Scadron, Michael D.

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

Authors

Kekez, Dalibor

Klabucar, Dubravko

Scadron, Michael D.

Description

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