Comment on "Suppression of piNN* Coupling and Chiral Symmetry"

Details Comment on "Suppression of piNN* Coupling and Chiral Symmetry" Comment on "Suppression of piNN* Coupling and Chiral Symmetry"

1998-01-26

arxiv.org/abs/hep-ph/9801413v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

1 page (RevTeX), comment on Phys. Rev. Lett. 80 (1998) 448, hep-ph/9707307; more explicit arguments added

Scientific paper

Jido, Oka and Hosaka have shown that the p-slash gamma_5 piece of the pion-to-vacuum correlator of two baryon interpolating fields vanishes in the soft-pion limit, as a consequence of chiral transformation properties of those fields. This is a statement about the particular combination of pion-baryon couplings and subtraction terms that corresponds to the chosen interpolating fields. It does not imply that the physical piNN* coupling of the N(1535) is suppressed.

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