When and how did existence of neutrinos confirmed experimentally?
Answers
Answer:
It was 1949 and the neutrino definitely existed on paper.
When it came to equations and paper, there was no getting away from this little particle. People had known it existed since 1931, when Wolfgang Pauli was studying beta decay. During beta decay, an atom emits an electron (or a positron), but Pauli noticed that it emitted this electron in a wide and continuous spectrum of different energy levels. It was almost as if the electron were sharing the total energy with another particle, each carrying a proportion. Three years later, Enrico Fermi confirmed the existence of a particle in his comprehensive theory of radioactive decay. According to Enrico Fermi, this particle could do impressive things. It could, for example, turn a proton into a neutron. When a proton captures a neutrino, it turns into a neutron, and in the process gives off a positron.