Question 1: The ________ of particle physics assumed that neutrinos are massless, although adding massive neutrinos to the basic framework is not difficult.
Question 2: This means that they move at speeds close to the ________.
Question 3: Raymond Davis Jr. and Masatoshi Koshiba were jointly awarded the 2002 ________; Davis for his pioneer work on cosmic neutrinos and Koshiba for the first real time observation of supernova neutrinos.
Question 4: Neutrinos could also be used for studying ________ effects.
Question 5: The problem is that being fast moving, the neutrinos would tend to have spread out evenly in the ________ before cosmological expansion made them cold enough to congregate in clumps.
Question 6: Indeed, the experimentally established phenomenon of ________ requires neutrinos to have nonzero masses.
Question 7: In the 1980s it was proposed that these may be the explanation for the ________ thought to exist in the universe.
Question 8: When was Neutrino discovered?
Question 9: Neutrinos are produced as a result of natural ________.
Question 10: Electron neutrinos (or antineutrinos) are generated whenever protons change into neutrons (or neutrons into protons), the two forms of ________.