The Neutrino - An Elusive Beast Essay -- Exploratory Essays Research P

The Neutrino - An Elusive BeastAn infinite deem of neutrinos shoot across the earths surface every second, radiated by distant stars, and just now it has taken up until the mid 20th century for anyone to realize it. purpose neutrinos in your own backyard is easy. All you need is a ten-ton vat of pure(a) water, 13000 photomultiplier tubes, and $11 million dollars in research funding. More on that later, but first, it would help to know a little more about what youre hunting. The neutrino is an ruffianly beast possessing neither mass nor charge. The only proof of its existence comes in measuring its recoil effect. In the cold heart of subatomic physics, beyond the protons and neutrons that until recently served as the basic building block of atoms, a well of subnuclear particles have been discover in recent years. This much-theorized-upon neutrino is one of these particles. Research has discovered three types of neutrinos the electron neutrino, the tau neutrino, and the muon neu trino. An anti-neutrino particle has also been discovered. All ar created as the result of particle decay.Neutrinos, born of decay, are given tally as one particle deteriorates into a more stable state. Neutrinos are emitted in positron (another type of subnuclear particle) beta decay while the anti-neutrino is emitted from electron beta decay. As a pion decays into a muon, the muon neutrino emerges along side the muon. When a pion decays, a neutral particle essential be emitted in the direction opposite that of the muon in swan to conserve momentum. The original assumption was that this particle was the neutrino that conserves momentum in beta decay. In 1962, however, researchers proved that the neutrino accompanying pion decay is different. At t... ...r for the population at large-- make our teeth whiter and cereal flakes stay crunchy in milk -- or is this just science for sciences own sake. Whats the payback for feel for neutrinos? Bah quips Super-K technician R.J. Wilkes, when asked if neutrino research is a big waste of time. He cites that the neutrino discoveries have unfastened new doors in astrophysics. Understanding neutrinos means a better intelligence of nuclear reactions of stars, as in the explosion of SN1987A. Works Cited Detection of the dispense with Neutrino A Confirmation, C.L. Cowan, Jr.,F. Reines, F.B. Harrison, H.W. Kruses and A.D. McGuire, Science 124, 103 (1956). 40 Years of Neutrino natural philosophy, Frederick Reines, come near of Particle and Nuclear Physics, Vol. 32, 1 (1994). Websites The University of Washingtons Super Kariokande Info Page UC Irvine Physics Department