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


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.


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


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  1. 1.
    E. Oset, H. Toki, M. Mizobe, T.T. Takahashi, Prog. Theor. Phys. 103, 351 (2000) [arXiv:nucl-th/0011008].CrossRefADSGoogle Scholar
  2. 2.
    J.A. Oller, E. Oset, Nucl. Phys. A 620, 438 (1997)CrossRefADSGoogle Scholar
  3. 3.
    D. Jido, E. Oset, J.E. Palomar, Nucl. Phys. A 694, 525 (2001) [arXiv:nucl-th/0101051].CrossRefADSGoogle Scholar
  4. 4.
    R.B. Wiringa, R.A. Smith, T.L. Ainsworth, Phys. Rev. C 29, 1207 (1984).CrossRefADSGoogle Scholar
  5. 5.
    R.B. Wiringa, V.G.J. Stoks, R. Schiavilla, Phys. Rev. C 51, 38 (1995) [arXiv:nucl-th/9408016].CrossRefADSGoogle Scholar
  6. 6.
    T.A. Rijken, Y. Yamamoto, arXiv:nucl-th/0603042.Google Scholar
  7. 7.
    J. Haidenbauer, U.G. Meissner, Phys. Rev. C 72, 044005 (2005) [arXiv:nucl-th/0506019].CrossRefADSGoogle Scholar
  8. 8.
    Z.Y. Zhang, Y.W. Yu, P.N. Shen, L.R. Dai, A. Faessler, U. Straub, Nucl. Phys. A 625, 59 (1997).CrossRefADSGoogle Scholar
  9. 9.
    Y. Fujiwara, C. Nakamoto, Y. Suzuki, M. Kohno, K. Miyagawa, Prog. Theor. Phys. Suppl. 156, 17 (2004).ADSCrossRefGoogle Scholar

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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