Solar neutrino problem — The solar neutrino problem was a major discrepancy between measurements of the numbers of neutrinos flowing through the earth and theoretical models of the solar interior, lasting from the mid 1960s to about 2002. The discrepancy has since been… … Wikipedia
solar — solar1 /soh leuhr/, adj. 1. of or pertaining to the sun: solar phenomena. 2. determined by the sun: solar hour. 3. proceeding from the sun, as light or heat. 4. utilizing, operated by, or depending on solar energy: a solar building; a solar stove … Universalium
problem — /prob leuhm/, n. 1. any question or matter involving doubt, uncertainty, or difficulty. 2. a question proposed for solution or discussion. 3. Math. a statement requiring a solution, usually by means of a mathematical operation or geometric… … Universalium
Neutrino oscillation — is a quantum mechanical phenomenon predicted by Bruno Pontecorvo[1] whereby a neutrino created with a specific lepton flavor (electron, muon or tau) can later be measured to have a different flavor. The probability of measuring a particular… … Wikipedia
Neutrino astronomy — is the branch of astronomy that observes astronomical objects with neutrino detectors in special observatories. Nuclear reactions in stars and supernova explosions produce very large numbers of neutrinos, a very few of which may be detected by a… … Wikipedia
Neutrino — Klassifikation Elementarteilchen Fermion Lepton Eigenschaften Ladung neutral Masse (E … Deutsch Wikipedia
Neutrino — For other uses, see Neutrino (disambiguation). Neutrino/Antineutrino The first use of a hydrogen bubble chamber to detect neutrinos, on November 13, 1970. A neutrino hit a proton in a hydrogen atom. The collision occurred at the point where three … Wikipedia
Neutrino detector — The Sudbury Neutrino Observatory, a 12 meter sphere filled with heavy water surrounded by light detectors located 2000 meters below the ground in Sudbury, Ontario, Canada. A neutrino detector is a physics apparatus designed to study neutrinos.… … Wikipedia
Solar neutrino — The main contribution comes from the so called proton proton chain reaction. The net reaction is:: 4 p + 2e = He + 2 u e ! ,or in words:: 4 protons + 2 electrons = Helium + 2 electron neutrinos.Neutrinos from the proton proton process have energy … Wikipedia
Neutrino Factory — The Neutrino Factory is a proposed particle accelerator complex intended to measure in detail the properties of neutrinos, which are extremely weakly interacting fundamental particles that can travel in straight lines through normal matter for… … Wikipedia
