Data for proton transport through atomic hydrogen environments: Elastic scattering

Abstract

Spanning the center-of-mass energy range of 10−4 to 108 eV, presented here are recommended integral and differential cross sections for elastic scattering in collisions of protons with atomic hydrogen. The recommended values have been determined by analysis of results of three primary theoretical methods with overlapping regimes of applicability within this broad range of collision energies. With comparison to data available in the literature and study of the numerical and physical convergences of the calculations, uncertainty quantification of the results has been made, which in turn aids uncertainty quantification of the astrophysical and other environment simulations the data is aimed at enabling. Along with other data for processes including excitation, ionization, and charge transfer, the present data support improved transport modeling of the passage of protons through atomic hydrogen, describing energy loss, charge change, secondary electron production, and photon emission.