6533b7d8fe1ef96bd126b603

RESEARCH PRODUCT

Recent Developments in one and two Pion Production in Elementary Reactions and Few-Body Systems

J. A. Gómez TejedorEulogio OsetF. CanoM. J. Vicente VacasE. Hernández

subject

PhysicsParticle physicsNuclear TheoryExtrapolationFew-body systemsNuclear physicsRenormalizationsymbols.namesakeAmplitudePionDeuteriumElementary reactionsymbolsFeynman diagramNuclear Experiment

description

In this talk we cover several issues concerning pion production. The first one is the pp → ppπ 0 reaction where an alternative explanation based on the off shell extrapolation of the πN amplitude is offered. A recent model for the γN → ππN reaction is presented and a new kind of exchange current is constructed from it which allows one to address problems like double ∆ photoproduction from the deuteron. Finally the (γ, ππ) reaction in nuclei is studied and shown to be highly sensitive to the renormalization of the pions in nuclei.

https://doi.org/10.1007/978-3-7091-9427-0_18