Towards resolution of the scalar meson nonet enigma II.Gell-Mann-Okubo revisited

Details Towards resolution of the scalar meson nonet enigma II.Gell-Mann-Okubo revisited Towards resolution of the scalar meson nonet enigma II.Gell-Mann-Okubo revisited

1997-09-10

arxiv.org/abs/hep-ph/9709305v1

Nucl.Phys.A628:87-100,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX

Scientific paper

10.1016/S0375-9474(97)00611-8

We rederive the new SU(3) multiplet mass formula 2M^2(s\bar{s})+3M^2(n\bar{n}, I=1)=4M^2(s\bar{n})+M^2(n\bar{n},I=0) (n=u,d}, obtained in our previous paper by using Regge phenomenology, for the pseudoscalar and scalar mesons in the Nambu-Jona-Lasinio model with instanton-induced interaction. We apply this formula to the problem of the correct q\bar{q} assignment for the scalar meson nonet. Our results strongly favor the masses of the scalar isoscalar mostly octet and mostly singlet states in the vicinity of 1.45 GeV and 1.1 GeV, respectively

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