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Symmetry 2018, 10(8), 302; https://doi.org/10.3390/sym10080302

Fermion Scattering in a CPT-Even Lorentz Violation Quantum Electrodynamics

1
Coordenação do Bacharelado Interdisciplinar em Ciência e Tecnologia, Universidade Federal do Maranhão (UFMA), Campus Universitário do Bacanga, São Luís-MA 65080-805, Brazil
2
Departamento de Física, Universidade Federal do Maranhão (UFMA), Campus Universitário do Bacanga, São Luís-MA 65080-805, Brazil
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 4 June 2018 / Revised: 6 July 2018 / Accepted: 16 July 2018 / Published: 31 July 2018
(This article belongs to the Special Issue Modern Trends of Lorentz Symmetry and Lorentz Violation)
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Abstract

In this work, we reassess two known processes of Quantum Electrodynamics involving electrons and muons. The photon propagator is modified by a CPT-even Lorentz-violating (LV) tensor, while fermion lines and the vertex interaction are not altered. Using the Feynman rules, the associated cross sections for unpolarized scatterings are evaluated, revealing the usual energy dependence and Lorentz-violating contributions that induce space anisotropy. A possible route to constraining the LV coefficients is presented and the results properly commented. View Full-Text
Keywords: lorentz breaking; scattering; differential cross sections lorentz breaking; scattering; differential cross sections
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Santos, F.E.P.; Ferreira, M.M. Fermion Scattering in a CPT-Even Lorentz Violation Quantum Electrodynamics. Symmetry 2018, 10, 302.

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