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Paper   IPM / Astronomy / 15721
School of Astronomy
  Title:   Probing Lorentz violation effects via a laser beam interacting with a high-energy charged lepton beam
1.  Seddigheh . Tizchang
2.  Rohoollah . Mohammadi
3.  She-Sheng . Xue
  Status:   Published
  Journal: Springer
  Year:  2019
  Supported by:            ipm IPM
In this work, the conversion of linear polarization of a laser beam to circular one through its forward scattering by a TeV order charged lepton beam in the presence of Lorentz violation correction is explored. We calculate the ratio of circular polarization to linear one (Faraday conversion phase �?�?FC ) of the laser beam interacting with either electron or the muon beam in the framework of the quantum Boltzmann equation. Regarding the experimentally available sensitivity to the Faraday conversion �?�?FC�??10�??3�??10�??2 , we show that the scattering of a linearly polarized laser beam with energy k0�?�0.1 eV and an electron/muon beam with flux ϵ¯e,μ�?�1010/1012 TeV cm �??2 s �??1 places an upper bound on the combination of lepton sector Lorentz violation coefficients cμν components (cTT+1.4 c(TZ)+0.25(cXX+cYY+2 cZZ) . The obtained bound on the combination for the electron beam is at the 4.35�?10�??15 level and for the muon beam at the 3.9�?10�??13 level. It should be mentioned that the laser and charged lepton beams considered here to reach the experimentally measurable �?�?FC are currently available or will be accessible in the near future. This study provides a valuable supplementary to other theoretical and experimental frameworks for measuring and constraining Lorentz violation coefficients.

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