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

Gabrielse, G.; Bowden, N. S.; Oxley, P.; Speck, A.; Storry, C. H.; Tan, J. N.; Wessels, M.; Grzonka, D.; Oelert, W.; Schepers, G.; Sefzick, T.; Walz, J.; Pittner, H.; Hänsch, T. W.; Hessels, E. A.

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

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Pittner, H.
Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society;

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Hänsch, T. W.
Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society;

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Citation

Gabrielse, G., Bowden, N. S., Oxley, P., Speck, A., Storry, C. H., Tan, J. N., et al. (2002). Driven production of cold antihydrogen and the first measured distribution of antihydrogen states. Physical Review Letters, 89(23): 233401. 233401. Retrieved from http://link.aps.org/abstract/PRL/v89/e233401.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-C18B-E

Abstract

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.