K. Sasaki, E. Oset, M. J. Vicente Vacas
Published 2006-07-31Version 1
We study the central part of Lambda N and Lambda Lambda potential by considering the correlated and uncorrelated two-meson exchange besides the omega 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 omega exchange contribution.
Comments: 15 pages, 12 figures
Journal: Phys.Rev.C74:064002,2006
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