An updated complete one-loop Standard Model calculation of elastic neutrino-electron scattering, validated against prior calculations, is used to predict JUNO and TAO event rates.
QED Corrections to Neutrino Electron Scattering
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abstract
We evaluate the O(alpha) QED corrections to the recoil electron energy spectrum in the process nu_l + e --> nu_l + e (+gamma), where (+gamma) indicates the possible emission of a photon and l=e, mu or tau. The soft and hard bremsstrahlung differential cross sections are computed for an arbitrary value of the photon energy threshold. We also study the O(alpha) QED corrections to the differential cross section with respect to the total combined energy of the recoil electron and a possible accompanying photon. Their difference from the corrections to the electron spectrum is investigated. We discuss the relevance and applicability of both radiative corrections, emphasizing their role in the analysis of precise solar neutrino electron scattering experiments.
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Elastic Neutrino-electron Scattering at the One-loop Level in the Standard Model
An updated complete one-loop Standard Model calculation of elastic neutrino-electron scattering, validated against prior calculations, is used to predict JUNO and TAO event rates.