Laser-assisted Collisional Ionization of Atomic Hydrogen by Fast Proton

Key words: 
• laser field /
• fast proton /
• atomic hydrogen /
• collisional ioniz ation

Abstract: The laser-assisted collisional ionization of atomic hydro ge n by 1 MeV fast proton is studied in the center-of-mass system. The dressed w avefunction of target is obtained by the time-dependent perturbation theory, and the state of ejected electron is described by a two-center Coulomb-Volko v wavefunction. It is shown that the double differential cross section (DDCS) i s lowered in the presence of a laser background. The higher the electron energy...