Chiral Dynamics in Systems with Strangeness

  • E. Oset
  • D. Jido
  • J. Palomar
  • A. Ramos
  • C. Bennhold
  • S. Kamalov
Part of the Few-Body Systems book series (FEWBODY, volume 14)


In this talk a brief review of several problems involving systems with strangeness is made. In the first place one shows how the Λ(1405), Λ(1670) and Σ(1620) states, for S = −1, and the Ξ(1620) for S = −2 are generated dynamically in the context of unitarized chiral perturbation theory. The results for the KN interaction are then used to evaluate the K d scattering length. Results obtained for the kaon selfenergy in a nuclear medium within this approach, with application to K atoms, are also mentioned. Finally a few words are said about recent developments in the weak decay of Λ hypernuclei and the puzzle of the Γ n p ratio.


Scattering Length Weak Decay Faddeev Equation Nuclear Medium Pion Exchange 
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Copyright information

© Springer-Verlag/Wien 2003

Authors and Affiliations

  • E. Oset
    • 1
  • D. Jido
    • 1
  • J. Palomar
    • 1
  • A. Ramos
    • 2
  • C. Bennhold
    • 3
  • S. Kamalov
    • 4
  1. 1.Departamento de Fisica Teorica and IFICUniversidad de Valencia, Institutos de Investigacion de PaternaValenciaSpain
  2. 2.Departament d’Estructura i Constituents de la MateriaUniversitat de BarcelonaBarcelonaSpain
  3. 3.Center for Nuclear Studies, Department of PhysicsThe George Washington UniversityUSA
  4. 4.Laboratory for Nuclear PhysicsJINR DubnaRussia

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