Scalar bosons with Coulomb potentials in a cosmic string background: Scattering and bound states

Abstract

The relativistic quantum motion of scalar bosons under the influence of a full vector (minimal $A^{\mu }$ and nonminimal $X^{\mu }$) and scalar ($V_s$) interactions embedded in the background of a cosmic string is explored in the context of the Klein-Gordon equation. Considering Coulomb interactions, the effects of this topological defect in equation of motion, phase shift and S-matrix are analyzed and discussed. Bound-state solutions are obtained from poles of the S-matrix and it is shown that bound-state solutions are possible only for a restrict range of coupling constants.

arXiv comment6 pages, 2 figures

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• On the Klein-Gordon scalar field oscillators in a spacetime with spiral-like dislocations in external magnetic fields
• Klein-Gordon particles in a nonuniform external magnetic field in Bonnor-Melvin rainbow gravity background
• Scattering cross-section in gravitating cosmic string spacetimes
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