6533b837fe1ef96bd12a32cf
RESEARCH PRODUCT
Improved unitarized heavy baryon chiral perturbation theory for πN scattering to fourth order
Juan Luis NievesE. Ruiz ArriolaA. Gómez NicolaJosé R. Peláezsubject
PhysicsChiral anomalyNuclear and High Energy PhysicsParticle physicsChiral perturbation theoryFísica-Modelos matemáticosUnitarityHeavy baryon chiral perturbation theoryScatteringPartial wave analysisHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyFísicaResonance (particle physics)Scattering amplitudeQuantum electrodynamicsFísica matemáticaNuclear Experimentdescription
We extend our previous analysis of the unitarized pion-nucleon scattering amplitude including up to fourth order terms in heavy baryon chiral perturbation theory. We pay special attention to the stability of the generated Delta(1232) resonance, the convergence problems, and the power counting of the chiral parameters.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-03-01 |