Meson-Baryon Effective Chiral Lagrangians at O(q^3) Revisited

Abstract

After our work was published, Frink and Meißner \cite{FM06} pointed out that our {\cal O}(q^3) three-flavour meson-baryon chiral Lagrangian was not minimal. Here, we discuss their findings and revise ours accordingly. We find that eight monomials in our $\mathcal{O}(q^3)$ Lagrangian are not independent, but in addition, two monomials were wrongly discarded, which, as a result, makes the agreement in the number of independent monomials with \cite{FM06} complete.

Comments: 7 pages, 1 table. A mistake was corrected. Our Lagrangian and that of [2] contain the same number of monomials