6533b831fe1ef96bd12983fb

RESEARCH PRODUCT

Scalar ΛN and ΛΛ interactions within a chiral unitary approach

K. SasakiEulogio OsetM. J. Vicente Vacas

subject

PhysicsRange (particle radiation)UnitarityHigh Energy Physics::LatticeIntermediate distanceNuclear TheoryHigh Energy Physics::PhenomenologyScalar (mathematics)Unitary stateAttractionUncorrelatedQuantum electrodynamicsQuantum mechanicsHigh Energy Physics::ExperimentPi interactionNuclear Experiment

description

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 sizable attraction in all cases which is counterbalanced by ω exchange contribution.

yearjournalcountryeditionlanguage
2008-06-26
https://doi.org/10.1007/978-3-540-76367-3_58