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antielectron |
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To make the first antimatter atoms that move slowly enough to be studied, physicists combined ultracold antiprotons and antielectrons into atoms of antihydrogen. In at least one case, an antielectron began orbiting an antiproton and created - briefly - antihydrogen. 20), each of which consists of a negatively charged antiproton orbited by one positively charged antielectron, or positron. |
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