2008/02/08 by S. Ghosh Deb, S. Roy, Deb, S. Ghosh +3
Chemistry · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Laser-Matter Interactions and Applications #Mass Spectrometry Techniques and Applications
paper · pdf · doi:10.48550/arxiv.0802.1197
openalex publication_date 2008/02/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The dynamics of the electron impact multiphoton ionization of a hydrogen atom in the presence of an intense laser field has been studied theoretically, with a view to comparing (qualitatively) the results with the recent kinematically complete experiments of Horr et al [ Phys. Rev. Lett., vol. 94, 153201, (2005) ] for the He target. Significant laser modifications are noted in the present doubly (DDCS) and the fully differential cross sections (TDCS). For most of the explored kinematics (chosen in accordance with the experiment), the present binary peak intensity of the laser-assisted TDCS is significantly enhanced with respect to the field free ones, in agreement with the experiment but in contradiction with the existing first order theories. Importance of the multiphoton effects are also studied.