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Title:
Reactors, gallium and sterile neutrinos?
Speaker:
Abstract:
There is a number of anomalies in low-energy neutrino experiments, which may or may not point towards a sterile neutrino. Neutrinos were discovered using a nuclear reactor as a source and since then much of our knowledge about neutrinos comes from experiments using reactors. I will briefly touch on the history of the use of reactors as neutrino source and motivate why they still play an important role today and in the future. An overview of the physics of how neutrinos are generated in reactors and how we can compute neutrino fluxes will follow. The developments of the past decade will be reviewed in particular. 2021 may have seen the resolution of one major riddle regarding the neutrino yield from uranium-235 and I will comment on this. I will present the current status of the sterile neutrino in electron neutrino disappearance including recent gallium results. I also will be touching on coherent elastic neutrino nucleus scattering at reactors.
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