New approach to determine proton-nucleus interactions from experimental bremsstrahlung data

Understand

A new approach is presented to determine the proton-nucleus interactions from the analysis of the accompanying photon bremsstrahlung.

• We study the scattering of $p + ^{208}{\rm Pb}$ at the proton incident energies of 140 and 145~MeV, and the scattering of $p + ^{12}{\rm C}$, $p + ^{58}{\rm Ni}$, $p + ^{107}{\rm Ag}$ and $p + ^{197}{\rm Au}$ at the proton incident energy of 190~MeV.
• The model determines contributions of the coherent emission (formed by an interaction between the scattering proton and nucleus as a whole without the internal many-nucleon structure), incoherent emission (formed by interactions between the scattering proton and nucleus with the internal many-nucleon structure), and transition between them in dependence on the photon energy.
• The radius-parameter of the proton-nucleus potential for these reactions is extracted from the experimental bremsstrahlung data analysis.