ScalarΛNandΛΛinteraction in a chiral unitary approach

6533b82bfe1ef96bd128d4ae

RESEARCH PRODUCT

ScalarΛNandΛΛinteraction in a chiral unitary approach

Eulogio Oset M. J. Vicente Vacas K. Sasaki

subject

Physics Nuclear and High Energy Physics Particle physics High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology Scalar (mathematics)Lambda Lambda baryon Unitary state Omega Uncorrelated Quantum mechanics High Energy Physics::Experiment Chirality (chemistry)Interaction range

description

We study the central part of the {lambda}N and {lambda}{lambda} potential by considering the correlated and uncorrelated two-meson exchange in addition to the {omega} exchange contribution. The correlated two-meson exchange is evaluated within 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 sizable attraction in all cases that is counterbalanced by the {omega} exchange contribution.

year	journal	country	edition	language
2006-12-13	Physical Review C

https://doi.org/10.1103/physrevc.74.064002

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