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A chiral quark model analysis of the $\bar KN$ interaction

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arxiv 2407.01759 v1 pith:THZN5DJX submitted 2024-07-01 hep-ph nucl-th

M. Conde-Correa , T. Aguilar , A. Capelo-Astudillo , A. Duenas-Vidal , J. Segovia , P. G. Ortega This is my paper · ORCID
classification hep-phnucl-th
keywords experimentalfindinginteractionmodelquarkagreementanalysisanalyze
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abstract

In this work we analyze the $\bar KN$ interaction in the framework of a constituent quark model. The near-threshold elastic and charge exchange cross sections are evaluated, finding a good agreement with the experimental data. Furthermore, the possible existence of $\bar KN$ bound states are explored, finding two poles in the isoscalar $J^P=\frac{1}{2}^-$ sector that can be interpreted as the experimental $\Lambda(1405)$ state.

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Cited by 2 Pith papers

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  1. Testing the nature of the $\Sigma^*(1430)$

    hep-ph 2025-05 conditional novelty 6.0 of 10

    A unitarized coupled-channel model using SU(3) couplings finds that a largely non-molecular Sigma*(1430) is either too narrow to match Belle data or becomes heavily dressed by meson-baryon components.

  2. Femtoscopic study of the $S=-1$ meson-baryon interaction: $K^-p$, $\pi^-\Lambda$ and $K^+\Xi^-$ correlations

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Chiral unitary models reproduce the measured kaon-proton correlation and give first predictions for pion-Lambda and kaon-Xi-minus correlations using new production-weight methods.

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