Eur. Phys. J. C (2015) 75: 321
https://doi.org/10.1140/epjc/s10052-015-3545-z

Regular Article - Theoretical Physics

Quantum dynamics of a spin-1/2 charged particle in the presence of a magnetic field with scalar and vector couplings

Departamento de Física, Universidade Federal do Maranhão, Campus Universitário do Bacanga, São Luís, Maranhão, 65080-805, Brazil

^* e-mail: bcastro.luisr@gmail.com
^** e-mail: lrb.castro@ufma.br

Received: 10 April 2015
Accepted: 29 June 2015
Published online: 9 July 2015

Abstract

The quantum dynamics of a spin-1/2 charged particle in the presence of a magnetic field is analyzed for the general case where scalar and vector couplings are considered. The energy spectra are explicitly computed for various physical situations, as well as their dependencies on the magnetic field strength, spin projection parameter, and vector and scalar coupling constants.