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Scalar isoscalar part of the hyperon-nucleon interaction

AuthorsSasaki, Kenji; Oset, Eulogi ; Vicente Vacas, Manuel J.
Keywords[PACS] Hyperon-nucleon interactions
[PACS] Chiral Lagrangians
Issue Date5-Mar-2007
PublisherSocietà Italiana di Fisica
CitationEuropean Physical Journal A 31(4): 557-559 (2007)
AbstractWe 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.
Description3 pages, 2 figures.-- PACS nrs.: 13.75.Ev, 12.39.Fe.-- ISI Article Identifier: 000245667300037.
Also published in: The IVth International Conference on Quarks and Nuclear Physics -- QNP 2006: Held in Madrid, Spain, June 5-10, 2006. Edited by A. Dobado, F. J. Llanes-Estrada and V. Vento. ISBN: 978-3-540-72515-2. Published by Springer Science+Business Media, LLC, New York, NY USA, 2007, p. 197.
Publisher version (URL)http://dx.doi.org/10.1140/epja/i2006-10215-5
Appears in Collections:(IFIC) Artículos
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