Our Methods Produce the World's Coldest Antiprotons

Before our methods: lowest antiproton energy was 21 MeV antiprotons from LEAR at CERN (later reduced to 5 MeV)

After our methods: antiprotons with more than 1010 times less energy (0.3 milli-eV, 4.2 Kelvin)



Our methods

Electrodes we used to trap the first antiprotons

A popular account gives the story of how an initially unfunded postdoc, with his untenured friends and new students, set out on two 24-hour, foolhardy excursions to CERN to prove that they can slow and trap antiprotons for the first time.

A review summarizes the low energy antiproton methods that would later make it possible to make slow antihydrogen atoms.

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Printable narrative of Gabrielse group results (pdf, doc)
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