https://doi.org/10.1140/epjp/s13360-025-06523-6
Regular Article
Influence of spacetime topology on scalar particle scattering: a study of spinning cosmic strings with spacelike disclination and dislocation
Laboratory of Theoretical and Applied Physics, Echahid Cheikh Larbi Tebessi University, Tebessa, Algeria
a abdelmalek.boumali@univ-tebessa.dz, boumali.abdelmalek@gmail.com
Received:
19
May
2025
Accepted:
4
June
2025
Published online:
20
June
2025
This work examines the scattering of scalar particles in the spacetime of a spinning cosmic string featuring spacelike disclination and dislocation. We solve the Klein–Gordon equation within this curved background to investigate the influence of spacetime geometry on the scattering amplitude, differential cross-section, and total cross-section. Two scenarios are considered: scattering in a pure cosmic string background and scattering in the presence of an additional scalar potential. The analysis is further extended to account for the effects of a spinning cosmic string with torsion. Our findings reveal that the deficit angle parameter 
-related to the linear mass density of the cosmic string-plays a crucial role in shaping the scattering behavior. Moreover, we demonstrate that the inclusion of spin and torsion in the spacetime metric leads to further modifications of the scattering properties through their coupling to the energy and momentum of the particles.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
