6533b7dbfe1ef96bd127002a

RESEARCH PRODUCT

Sigma Exchange in the NN interaction within the chiral unitary approach

M. MizobeHiroshi TokiT. T. TakahashiE. Oset

subject

PhysicsNuclear Theory (nucl-th)Range (particle radiation)Nuclear TheoryPhysics and Astronomy (miscellaneous)ScatteringQuantum mechanicsNuclear TheorySigmaFOS: Physical sciencesFísicaNuclear ExperimentUnitary state

description

We study the nucleon-nucleon interaction in the isoscalar-scalar channel using t he chiral unitary approach. The $t$-matrix of the pion-pion scattering in this c hannel is summed up to all orders using the B-S equation. We find that the calcu lated results at long distances are close to those of the $\sigma$-exchange inte raction. In addition, there appears a shorter range repulsion in this channel.

yearjournalcountryeditionlanguage
2000-11-02
10.1143/ptp.103.351http://hdl.handle.net/10550/46834