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Dynamical Generation of Hyperon Resonances

A. Ramos·E. Oset·C. Bennhold·D. Jido. J. A. Oller·U. G. Meissner
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Abstract

In this talk we report on how, using a chiral unitary approach for the meson--baryon interactions, two octets of $J^π=1/2^-$ baryon states and a singlet are generated dynamically, resulting in the case of strangeness $S=-1$ in two poles of the scattering matrix close to the nominal $Λ(1405)$ resonance. We suggest experiments which could show evidence for the existence of these states.

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A. Ramos, E. Oset, C. Bennhold, D. Jido. J. A. Oller, U. G. Meissner. 2003-12-04. Dynamical Generation of Hyperon Resonances. https://doi.org/10.1016/j.nuclphysa.2005.01.003

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