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arXiv · 0909.0916

CP Violation in Antineutrino-Electron Elastic Scattering

W. Sobków·S. Ciechanowicz·M. Misiaszek
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Abstract

Elastic scattering of transversely polarized electron antineutrino beam off unpolarized electrons can be used to detect the CP-violating effects by measuring the azimuthal asymmetry of recoil electrons caused by the interference terms between the standard vector $c_{V}^{L}$, axial $c_{A}^{L}$ couplings of left-chirality antineutrinos and exotic scalar $c_{S}^{R}$ coupling of right-chirality ones in the differential cross section. It would be a positive evidence for the existence of the exotic antineutrino states. Moreover, we also show that the differential cross section for the $\overlineν e^- $ scattering can be obtained from the one for the $νe$ scattering, if one makes the substitution $c_{T}^{R} \to -c_{T}^{R}$, $c_{A}^{L} \to -c_{A}^{L}$, ${\bf q}\to -{\bf q}$, ${\boldmath $\hatη_ν$}\to -{\boldmath $\hatη_ν$}$.

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W. Sobków, S. Ciechanowicz, M. Misiaszek. 2009-09-04. CP Violation in Antineutrino-Electron Elastic Scattering. https://arxiv.org/abs/0909.0916

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