Proton neutralization at the surface of a solid

Abstract
Making use of the Bates-type quantum-mechanical recombination theory, the probability of the proton neutralization at the surface of a solid is discussed. The neutral fraction for the transition to the ground state of the hydrogen atom is calculated, and the dependences of the neutral fraction on the exit energy and angle of proton emerging from a metal are discussed. Numerical calculations are performed for Au, and the results are compared with experiments.