Neutrinos

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  • Topic: Neutrino, Electron, Particle physics
  • Pages : 1 (312 words )
  • Download(s) : 45
  • Published : April 8, 2013
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Astronomy
Neutrinos

The lecture on neutrinos was very interesting and informative. I had never known about neutrinos until I attended the lecture. Throughout the lecture I found out what neutrinos are, how they were discovered and the experiments that are conducted to learn more about them. I learned that neutrinos are subatomic particles with a zero charges and very little mass. There are three types of neutrinos: electron, muon and tau.

The idea that neutrinos exist was proposed by Wolfgang Pauli. He proposed that there were more than two particles involved in an explosion, that along with protons and electrons, that a third, the neutron, was also involved. He stated that energy and momentum did not seem to be conserved in radioactive decays. Pauli proposed that the reason for this absent energy might be that was carried away by a neutral particle, a particle that was escaping detection. Since then experiments have been conducted to detect and learn more about neutrinos. The terrestrial neutrino experiment which is also known as the Super Kamiokande was established in 1983. Super Kamiokande is a neutrino observatory which is under Mount Kamioka in Japan. This experiment uses a 50,000 ton tank of water to detect and record flashes of neutrinos. In 1987 this observatory was one of three neutrinos observatories to detect neutrinos emitted from a super nova. Another neutrino experiment is called the Ice Cube Experiment. This experiment uses detectors that are lowered into holes melted into the Antarctic. Ice Cube is the world’s largest neutrino observatory. Neutrinos are still being studied because the mass of a neutrino is still unknown and it is not certain how many types of neutrinos exist. Neutrinos are being observed in space because the universe is vast which makes the universe the best neutrino detector. Observing neutrinos in space may help measure the unknown properties of neutrinos.
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