Abstract
A series of nucleon–nucleon bremsstrahlung (NNγ) 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 ≈30%, for some kinematics.
Highlights
The nucleon–nucleon (NN ) interaction is the corner-stone of any model dealing with nuclear systems
Vital to have a good understanding of the NN potential before searching for smaller effects such as the three nucleon force
The NN potential can be addressed by studying the deuteron as the simplest bound state, or by investigating observables of NN scattering
Summary
The nucleon–nucleon (NN ) interaction is the corner-stone of any model dealing with nuclear systems. The first data at small proton opening angles, corresponding to large photon energies, typically 65 MeV, were published subsequently [8,9,10,11].
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