Inelastic Collisions between Heavy Particles I: Excitation and Ionization of Hydrogen Atoms in Fast Encounters with Protons and with other Hydrogen Atoms

H+(or H(1s)) + H(1s) → H+(or H(1s)) + H(2s, 2p, 3s, 3p, 3d or C), where C represents the continuum. The results are presented mainly in graphical form. In the case of the ionizing collisions the energy distribution of the ejected electrons is also given.