Nonlinear effects in the laserassisted scattering of a positron by a muon
Abstract
The scattering of a positron by a muon in the presence of a linearly polarized laser field is investigated in the first Born approximation. The theoretical results reveal: (1) At large scattering angle, an amount of multiphoton processes take place in the course of scattering. The photon emission processes predominate the photon absorption ones. (2) Some nonlinear phenomena about oscillations, dark angular windows, and asymmetry can be observed in angular distributions. We analyze the cause giving rise to dark windows and geometric asymmetry initially noted in the potential scattering. (3) We also analyze the total differential crosssection, the result shows that the larger the incident energy is, the smaller the total differential crosssection is. The reasons of these new results are analyzed.
 Publication:

Modern Physics Letters B
 Pub Date:
 February 2018
 DOI:
 10.1142/S0217984918500586
 arXiv:
 arXiv:1710.02988
 Bibcode:
 2018MPLB...3250058D
 Keywords:

 Multiphoton processes;
 dark angular windows;
 the generalized Bessel function;
 34.50.Rk;
 34.80.Qb;
 34.80.Uv;
 Lasermodified scattering and reactions;
 Lasermodified scattering;
 Positron scattering;
 Physics  Atomic Physics
 EPrint:
 doi:10.1142/S0217984918500586