Meson-Baryon Effective Chiral Lagrangians at O(q3) Revisited
Jose Antonio Oller, Joaquim Prades, Michela Verbeni
Abstract
After our work was published, Frink and Meißner FM06 pointed out that our O(q3) 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 O(q3) 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 FM06 complete.
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