(from the article `Physical Sciences`) Each type of fundamental particle has its equivalent antiparticle, and a particle and its antiparticle annihilate on meeting. The production of atoms ... In 1995 physicists at the European Organization for Nuclear Research (CERN) in Geneva created the first antiatom, the antimatter counterpart of a...
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Antihydrogen is the antimatter counterpart of hydrogen. Whereas the common hydrogen atom is composed of an electron and proton, the antihydrogen atom is made up of a positron and antiproton. Antihydrogen began to be produced artificially in accelerator experiments in 1995, but the atoms produced had such `hot` velocities as to collide with matte.....
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