6533b873fe1ef96bd12d58c9
RESEARCH PRODUCT
Two pion mediated scalar isoscalarNNinteraction in the nuclear medium
M. J. Vicente VacasEulogi OsetM. Kaskulovsubject
PhysicsNuclear and High Energy PhysicsParticle physicsRange (particle radiation)Nuclear TheoryIsoscalarNuclear TheoryScalar (mathematics)FOS: Physical sciencesFísicaNuclear matterNuclear Theory (nucl-th)RenormalizationNuclear physicsPionNuclear forceNuclear ExperimentNucleondescription
We study the modification of the nucleon nucleon interaction in a nuclear medium in the scalar isoscalar channel, mediated by the exchange of two correlated ($\sigma$ channel) or uncorrelated pions. For this purpose we use a standard approach for the renormalization of pions in nuclei. The corrections obtained for the $NN$ interaction in the medium in this channel are of the order of 20% of the free one in average, and the consideration of short range correlations plays an important role in providing these moderate changes. Yet, the corrections are sizable enough to suggest further studies of the stability and properties of nuclear matter.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-06-09 | Physical Review C |