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Antimatter spectroscopy

First measurements of the line-shape of the 1s-2s in the antihydrogen atom are reported in a paper published in Nature, by the ALPHA collaboration, where Fysikum is a partner. The line shape agrees with ordinary hydrogen to a relative precision of 2x10-12, and thus puts an upper limit to the possible violation of matter-antimatter symmetries.
Photo © CERN
In the history of modern physics, the hydrogen atom has played a central role. Starting with the … Continue Reading ››