  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.
