Neutrino physics is entering a precision era that requires a careful treatment of percent-level effects. In this talk, I am going to discuss the role of radiative corrections in modern and future experiments with artificial neutrino sources.

 

One-loop radiative corrections introduce the flavor dependence in the coherent elastic neutrino-nucleus scattering at the percent level. To consistently account for radiative corrections, we start from the effective field theory of neutrino-lepton and neutrino-quark interactions, embed quarks into nucleons and nucleons into nuclei. We present cross sections at energies below 100 MeV and provide a complete error budget accounting for all uncertainties at nuclear, nucleon, hadronic, and quark levels.

 

Precise knowledge of neutrino-nucleon charged-current quasielastic scattering is crucial for successful measurements of neutrino oscillation parameters at accelerator-based facilities. Exploiting effective field theory, we factorize neutrino-nucleon quasielastic cross sections into soft, collinear, and hard contributions. We evaluate soft and collinear functions from QED and provide a model for the hard contribution. Performing resummation, we account for logarithmically-enhanced higher-order corrections of percent level and evaluate precise cross sections quantifying the resulting error. We discuss the relevance of radiative corrections depending on conditions of accelerator-based neutrino experiments.

 

https://www.dropbox.com/sh/7pba51icufsyfzw/AAB73FDAmPrKH3Pl_1Z0dk5fa?dl=0