JUNO sensitivity to low energy atmospheric neutrino spectra

Low Energy Atmospheric Neutrino Events in MACRO

The flux of low energy atmospheric neutrinos (Eν ∼ 4 GeV ) has been studied with the MACRO detector at Gran Sasso by detecting νμ interactions inside the apparatus, and by upward-going stopping muons. The updated analysis of the data collected until now with the complete apparatus will be presented. The results show a deficit of the measured number of events in an uniform way over the whole zen...

Reconstructing supernova-neutrino spectra using low-energy beta beams.

Neutrinos are the principal messengers reaching us from the center of a supernova. Terrestrial neutrino telescopes can provide precious information about the processes in the core of the star. But the information that a neutrino detector can supply is restricted by the fact that little experimental data on the neutrino-nucleus cross sections exist and by the uncertainties in theoretical calcula...

The San Onofre Reactor Neutrino Experiment a Low Energy Test of the Atmospheric Neutrino Anomaly

The long-standing solar neutrino deecit and the anomaly in the ratio of electron to muon neutrinos, found for neutrinos generated in the atmosphere, are intriguing hints at the existence of nite neutrino masses and avor mixing. Our collaboration is preparing a low energy long baseline-oscillation experiment, to test the latter phenomenon. A 12 ton segmented, Gd loaded liquid scintillation detec...

Low-Energy Neutrino Physics and Neutrino Mass

Radiative corrections to low-energy neutrino reactions

We show that the radiative corrections to charged current ~CC! nuclear reactions with an electron ~positron! in the final state are described by a universal function. The consistency of our treatment of the radiative corrections with the procedure used to extract the value of the axial coupling constant gA is discussed. To illustrate we apply our results to ~anti! neutrino deuterium disintegrat...