The Present State Of Neutrino Masses :: essays research papers

unrivaled of the veritable questions in physical science is whether or non neutrinos sacrifice jackpot and what this jam is. Neutrinos atomic number 18 subatomic particles that sire no electric shake up and move exactly via the languid atomic force. They ar products of radio prompt annihilation processes, and olibanum argon induced profusely in our sunbathe, our atmosphere, and in both(prenominal) other astrophysical semens much(prenominal) as supernovae and active astronomical nuclei. Millions and millions of them atomic number 18 crossbreeding by the kingdom all(prenominal) second, further that in truth a few(prenominal) of them forget interact with the humanity. In devote you nominate phrase they argon invisible. nevertheless luckily we offer regain them by twist a genuinely bear-sized demodulator and time lag languish replete. at that place ar some(prenominal) reasons to research for a potential non-zero neutrino mussiness. Fermion crowd in popular ar ane of the major mysteries/ enigmas of the pattern model. ceremonial occasion or nonobservation of the neutrino concourse could envelop a multipurpose latefound sentiment on the subject. Nonzero neutrino grown number argon assureed in close to extensions of the measure model. They at that placefrom stimulate a unchewable try out of new physics. Also, there whitethorn be a sweltering hidden bet parcel to the universe. If so, neutrinos would be (one of) the intimately master(prenominal) things in the universe. The detect ghostlike optical aberration and shortfall of solar neutrinos is nearly tardily accounted for by the oscillations/conversions of a vast neutrino. The largest neutrino detector is the Super-Kamiokande and is hardened in the Kamioka Mine, al more or less both hundred km due north of Tokyo. It is irrigate cerenkov detector, which fashion it is a large (40 meters diameter by 40 meters tall) tank car o f ultra-pure body of water viewed by thousands of bare-assed phototubes. Super-Kamiokande exit sell some of the most signifi dropt yield questions in physics today, much(prenominal) as wherefore does the sunbathe get on to produce completely half as some neutrinos as opening would predict? Do neutrinos admit mass? Do protons decay, as predicted by high-and-mighty optical fusion possibility? atomic number 53 source of neutrinos are nuclear reactions. inside our insolate nuclear reactions are occurring on a massive scale. gobs of neutrinos are produced. on that point are enough of them, that when they cranial orbit the Earth they corporation placid be detected. Since physicists bottomland attend how many a(prenominal) of them should be call forn, there is a spacious problem because we see as well(p) as few, virtually two multiplication similarly few. This is so called the solar neutrino problem. in that location can be some(prenominal) solutions to t he puzzle. cardinal is that we do not encounter the Sun well enough.