Atoms 4 Classical trajectory monte carlo methods Monte Carlo methods 4 Atomic hydrogen 2 Charge density waves 2 Continuum distorted wave-eikonal initial state 2 Differential cross section 2 Distortion (waves) 2 Electron capture 2 Electron-capture cross sections 2 Electron-capture process 2 First Born approximation 2 High energy physics 2 Impact ionization 2 Impulse approximation 2 Intermediate energies 2 Ionization 2 Ions 2 Multi-charged ion 2 Proton impact 2 Single ionization 2 Single-differential 2 State selective 2 Theoretical study 2