ATRAP Makes Background-free
Observation of Cold Antihydrogen
2002
Contact Spokesperson
A background-free observation of cold antihydrogen atoms is made using
field ionization followed by antiproton storage, a detection method that
provides the first experimental information about antihydrogen atomic states.
More antihydrogen atoms can be field-ionized in an hour than all the antimatter
atoms that have been previously reported, and the production rate per incident
high energy antiproton is higher than ever observed. The high rate
and the high Rydberg states suggest that the antihydrogen is formed via three-body
recombination.
ATRAP Press Release
CERN
Press Release
Press Release
of the American Institute of Physics
Physical Review Letters 89, 213401 online (2002)
Preprint