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arXiv · hep-ph/9803332

Chiral Dynamics of the low-energy Kaon-Baryon interactions

B. Krippa
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Abstract

The processes involving $K^{-}p, KN, Σπ, Λπ,Ση, Λη$ coupled channels are studied in the nonperturbative chiral approach. An effective potential is constructed using a chiral meson-baryon Lagrangian at lowest order. This potential is iterated to all orders with the Lippmann-Schwinger equation. A reasonable fit of the experimental data is obtained. It is pointed out, however, that due to a strong sensitivity of the results to the value of the cut-off, such an approach should be viewed as a rather phenomenological way to fit the experimental data since there is no small expansion parameter allowing for truncation of the chiral expansion of the effective potential at some given order. A possible way to construct the consistent chiral expansion is briefly discussed

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B. Krippa. 1998-03-12. Chiral Dynamics of the low-energy Kaon-Baryon interactions. https://doi.org/10.1103/physrevc.58.1333

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