antiprotonic
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Antiprotonic helium — An antiprotonic helium atom is a three body object composed of an antiproton and an electron orbiting around a helium nucleus. It is thus made partly of matter, and partly of antimatter. The atom is electrically neutral, since both electrons and… … Wikipedia
Exotic atom — An exotic atom is an otherwise normal atom in which one or more sub atomic particles have been replaced by other particles of the same charge. For example, electrons may be replaced by other negatively charged particles such as muons (muonic… … Wikipedia
Antiproton — Negaton redirects here. For the negatively charged particle in an atom that was once called a negaton, see Electron. Antiproton The quark structure of the antiproton. Classification Antibaryon Composition … Wikipedia
Antiproton Decelerator — Der Antiproton Decelerator Typ Speicherring Zweck … Deutsch Wikipedia
Positronium — (Ps) is a system consisting of an electron and its anti particle, a positron, bound together into an exotic atom . Being unstable, the two particles annihilate each other to produce two gamma ray photons after an average lifetime of 125 ps or… … Wikipedia
Antiproton — (p ) Klassifikation Fermion Hadron Baryon Nukleon Eigenschaften Ladung −1 e 1,602176462 · 10 19 C … Deutsch Wikipedia