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Proton-proton bremsstrahlung towards the elastic limit at 190 MeV incident beam energy

A series of nucleon-nucleon bremsstrahlung (NN gamma) experiments at 190 MeV incident beam energy have been performed at KVI in order to gain more insight into the dynamics governing the bremsstrahlung reaction. After initial measurements wherein the bremsstrahlung process was studied far away from the elastic limit, a new study was used to probe the process nearer to the elastic limit by measuring at lower photon energies. Measured cross sections and analyzing powers are compared with the predictions of a microscopic model and those of two soft-photon models. The theoretical calculations overestimate the data by up to approximate to 30%, for some kinematics.

nucleon-nucleon interaction; proton-proton bremsstrahlung; elastic limit low-energy photon

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