6533b7ddfe1ef96bd12750bb

RESEARCH PRODUCT

Isobar excitation in proton-proton bremsstrahlung

Dieter DrechselLothar TiatorH.j. Weber

subject

PhysicsCoupling constantNuclear and High Energy PhysicsSoft photonPhotonProtonNuclear TheoryBremsstrahlungNuclear physicsIsobarPhysics::Accelerator PhysicsAtomic physicsNuclear ExperimentNucleonExcitation

description

Abstract The contribution of intermediate nucleon isobars to proton-proton bremsstrahlung is calculated in a relativistic model. Using conventional coupling constants and form factors for the exchange of π - and ρ-mesons we find that for photon energies ω > 100 MeV isobar excitation increases the cross section markedly over the prediction of soft-photon calculations. Our results agree well with recent experiments at incident proton energy T lab =730 MeV.

https://doi.org/10.1016/0375-9474(78)90475-x