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Hyperfine Interactions

, 193:253 | Cite as

Baryon resonances as hadronic molecule states with kaons

  • Daisuke Jido
  • Yoshiko Kanada-En’yo
Article
  • 28 Downloads

Abstract

We investigate hadronic molecule states of \(K \bar K N\) and \(\bar K \bar K N\) systems with I = 1/2 and J P  = 1/2 + , assuming that Λ(1405) and the scalar mesons, f 0(980), a 0(980), are reproduced as quasi-bound states of \(\bar KN\) and \(K \bar K\). Performing non-relativistic three-body calculations for these systems, we find weakly bound states for \(K \bar K N\) and \(\bar K \bar K N\) around 1900 MeV, which correspond to new baryon resonances of N * and Ξ * with J P  = 1/2 + . We find that these resonances have cluster structure of the two-body bound state keeping its properties as in the isolated two-particle system.

Keywords

Three-body bound state Λ(1405) resonance Kaon-nucleon interaction 

PACS

14.20.Gk 13.75.Jz 13.30.Eg 21.45.-v 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Yukawa Institute for Theoretical PhysicsKyoto UniversitySakyoJapan

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