free antineutron

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• Antineutron — The antineutron is the antiparticle of the neutron. It was discovered (in proton proton collisions in the Bevatron at Berkeley) by Bruce Cork in 1956, a year after the antiproton was discovered. An antineutron has the same mass as a neutron, and… …   Wikipedia

• Neutron — This article is about the subatomic particle. For other uses, see Neutron (disambiguation). Neutron The quark structure of the neutron. (The color assignment of individual quarks is not important, only that all three colors are present.)… …   Wikipedia

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium

• Antimatter — For other uses, see Antimatter (disambiguation). Antimatter …   Wikipedia

• subatomic particle — or elementary particle Any of various self contained units of matter or energy. Discovery of the electron in 1897 and of the atomic nucleus in 1911 established that the atom is actually a composite of a cloud of electrons surrounding a tiny but… …   Universalium

• 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

• Électron — Traduction à relire Electron → …   Wikipédia en Français

• Deuterium — Hydrogen 2 Full table General Name, symbol deuterium, 2H or D Neutrons 1 …   Wikipedia

• Antimatter weapon — An antimatter weapon is a hypothetical device using antimatter as a power source, a propellant, or an explosive for a weapon. Antimatter weapons do not currently exist outside fiction (such as Star Trek s photon torpedo). The United States Air… …   Wikipedia

• Sterile neutrino — Composition Elementary particle Statistics Fermionic Generation all Interactions gravity; other potential unknown interactions Status Hypothetical …   Wikipedia

• 1956 en science — Années : 1953 1954 1955  1956  1957 1958 1959 Décennies : 1920 1930 1940  1950  1960 1970 1980 Siècles : XIXe siècle  XXe siècl …   Wikipédia en Français