Relativistic elastic scattering of a muon neutrino by an electron in an elliptically polarized laser field

Abstract

Within the framework of electroweak theory, we investigate the elastic scattering process e−+νμ→e−+νμ in the presence of an intense elliptically polarized laser field. We derive an analytical expression for the spin-unpolarized differential cross section using the first Born approximation and the Dirac-Volkov states to describe the incident and scattered electrons. Our results generalize those found for the linearly polarized field by Bai et al. (2012) [24] and for the circularly polarized field by El Asri et al. (2021) [23]. We find that the differential cross section is significantly enhanced for linear polarization and reduced for circular and elliptical polarizations.

Keywords

• Laser-assisted processes
• Electroweak theory
• Electron-neutrino scattering
• Dirac-Volkov formalism
• Elliptical polarization