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The European Physical Journal A

, Volume 31, Issue 4, pp 557–559 | Cite as

Scalar isoscalar part of the hyperon-nucleon interaction

  • K. SasakiEmail author
  • E. Oset
  • M. J. Vicente Vacas
QNP 2006

Abstract.

We study the central part of the ΛN potential by considering the correlated and uncorrelated two-meson exchange besides the ω exchange contribution. The correlated two-meson is evaluated in a chiral unitary approach. We find that a short-range repulsion is generated by the correlated two-meson potential which also produces an attraction in the intermediate distance region. The uncorrelated two-meson exchange produces a sizeable attraction in all cases which is counterbalanced by ω exchange contribution.

PACS.

13.75.Ev Hyperon-nucleon interactions 12.39.Fe Chiral Lagrangians 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  1. 1.Departamento de Fısica Teórica and IFICCentro Mixto Universidad de Valencia-CSICSpain

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