Neutrino oscillations: from evidences to facts
IFIC CSIC/U.Valencia, Spain
Roberto A. Lineros
This year marks the 20th anniversary of the discovery of neutrino oscillations in the Japanese experiment Super-Kamiokande. From the observation of flavour oscillations in atmospheric neutrinos in 1998, the presence of this phenomenon has been confirmed in other sources of neutrinos, such as those produced at the core of the Sun, particle accelerators and nuclear reactors. The experimental progress in this field over the last decades has been extraordinary and there is no doubt that at least two of the three known light neutrinos have masses different from zero and mix among themselves according to parameters determined with increasing precision. However, many other questions regarding the mechanism of neutrino oscillations, as well as the extensions of the Standard Model necessary to explain neutrino masses remain unsolved. In this colloquium, I will review the current state of neutrino flavor oscillations as well as the main challenges that will be addressed in the future in the area of neutrino physics.
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