Scalar Lambda N and Lambda Lambda interaction in a chiral unitary approach

Details Scalar Lambda N and Lambda Lambda interaction in a chiral unitary approach Scalar Lambda N and Lambda Lambda interaction in a chiral unitary approach

2006-07-31

arxiv.org/abs/nucl-th/0607068v1

Phys.Rev.C74:064002,2006

Physics

Nuclear Physics

Nuclear Theory

15 pages, 12 figures

Scientific paper

10.1103/PhysRevC.74.064002

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.

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