DSpace logo

Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/14436
Title: Laser-assisted (e,2e) study with twisted electron beam on H-atom
Authors: Choubisa, Rakesh
Keywords: Physics
Triple differential cross-section (TDCS)
Orbital angular momentum (OAM)
Asymmetric geometry
Issue Date: Aug-2023
Publisher: ARXIV
Abstract: We study the laser-assisted twisted electron beam impact ionization of the hydrogen atom in coplanar asymmetric geometry. We develope the theoretical model in the first Born approximation. In the presence of the laser field, we treat the incident and scattered electrons as Volkov waves, the ejected electron, moving in the combined field of the laser and residual ion H + , is described by a Coulomb-Volkov wave function . In this communication, we compare the angular profile of triple differential cross-section (TDCS) for laser-assisted twisted electron beam incidence with the plane-wave, laser-assisted plane wave, and field-free twisted electron beam for (e,2e) processes, for different orbital angular momentum (OAM) number (m l ) values. We analyze the influence of the laser parameters (photon exchanged, intensity ) on the angular distribution of the TDCS. We study the (T DCS) av for macroscopic target to examine the effect of opening angle {\theta} p of the twisted electron beam on the angular profile of TDCS. Our results clearly show the impact of laser parameters (electric field ? and number of photon exchanged (l)) and twisted electron beam parameters (OAM number (m l ) and opening angle ({\theta} p )) on the angular distribution of TDCS.
URI: https://arxiv.org/abs/2308.13845
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14436
Appears in Collections:Department of Physics

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.