Scattering cross-section in gravitating cosmic string spacetimes
- 10 September 2021
- journal article
- research article
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 38 (20), 205006
- https://doi.org/10.1088/1361-6382/ac25e0
Abstract
We propose a modification of the partial wave approach to deal with the relativistic quantum scattering of bosonic and fermionic particles in a class of models concerning gravitating cosmic string spacetimes. These spacetimes are characterized by the Minkowski line element at the center of the vortex, non-vanishing curvature at a finite distance from the center but with a conical structure far from the core. We find the correction in the partial wave expansion and the phase shift. Consequently, we show the explicit form of the scattering amplitude and the correction to the differential cross-section for a massive scalar field. We also implement our formalism in a toy model mimicking this class of gravitating cosmic string spacetime. Moreover, we discuss the procedure to apply this formalism to a massive Dirac field.Keywords
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Funding Information
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (309368/2020-0)
- Universidade Federal de Pernambuco
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