Driven production of cold antihydrogen and the first measured distribution of antihydrogen states

Collaboration
2002
4 pages
Published in:
  • Phys.Rev.Lett. 89 (2002) 233401
Experiments:

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Abstract: (APS)
Cold antihydrogen is produced when antiprotons are repeatedly driven into collisions with cold positrons within a nested Penning trap. Efficient antihydrogen production takes place during many cycles of positron cooling of antiprotons. A first measurement of a distribution of antihydrogen states is made using a preionizing electric field between separated production and detection regions. Surviving antihydrogen is stripped in an ionization well that captures and stores the freed antiproton for background-free detection.
  • antihydrogen: production
  • anti-p: confinement
  • positron: confinement
  • antihydrogen: yield
  • electric field: ionization
  • anti-p p: annihilation
  • experimental results
  • CERN Lab