Implications of eta-etaprime mixing for the decay eta->3 pi

Details Implications of eta-etaprime mixing for the decay eta->3 pi Implications of eta-etaprime mixing for the decay eta->3 pi

1996-01-10

arxiv.org/abs/hep-ph/9601236v1

Phys.Lett. B374 (1996) 181-185

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex

Scientific paper

10.1016/0370-2693(96)00167-0

Taken by itself, the interference with the etaprime appears to strongly affect the amplitude of the transition eta->3 pi. I point out that this effect is fictitious and also occurs in the mass spectrum of the pseudoscalars. Chiral symmetry implies that the same combination of effective coupling constants which determines the small deviations from the Gell-Mann-Okubo formula also specifies the symmetry breaking effects in the decay amplitude and thus ensures that these are small.

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