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arxiv: nucl-th/0607051 · v1 · submitted 2006-07-24 · ⚛️ nucl-th

Recent developments in chiral dynamics of hadrons and hadrons in a nuclear medium

E. Oset , S. Sarkar , M. J. Vicente Vacas , M. Kaskulov , L. Roca , V.K. Magas , A. Ramos , H. Toki This is my paper
classification ⚛️ nucl-th
keywords hadronsinteractionmediumchirallambdanuclearoctetrecent
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In this talk I present recent developments in chiral dynamics of hadrons and hadrons in a medium addressing the following points: interaction of the octet of pseudoscalar mesons with the octet of baryons of the nucleon, showing recent experimental evidence on the existence of two $\Lambda(1405)$ states, the interaction of the octet of pseudoscalar mesons with the decuplet of baryons of the $\Delta$, with particular emphasis on the $\Lambda(1520)$ resonance, dynamically generated by this interaction. Then I review the interaction of kaons in a nuclear medium and briefly discuss the situation around the claims of deeply bound states in nuclei. The large renormalization of the $\Lambda(1520)$ in the nuclear medium is shown as another example of successful application of the chiral unitary techniques.

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  1. Radiative decays of the $\Lambda(1520)$ as a dynamically generated resonance

    hep-ph 2026-05 unverdicted novelty 6.0

    In the chiral unitary approach with dimensional regularization and new photon-baryon diagrams, the computed Lambda(1520) to gamma Sigma0 width matches BESIII data while the gamma Lambda width underpredicts the CLAS result.