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Towards antihydrogen trapping and spectroscopy at ALPHA

Butler, E. (author)
Andresen, G. (author)
Ashkezari, M. (author)
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Baquero-Ruiz, M. (author)
Bertsche, W. (author)
Bowe, P. (author)
Bray, C. (author)
Cesar, C. (author)
Chapman, S. (author)
Charlton, M. (author)
Fajans, J. (author)
Friesen, T. (author)
Fujiwara, M. (author)
Gill, D. (author)
Hangst, J. (author)
Hardy, W. (author)
Hayano, R. (author)
Hayden, M. (author)
Humphries, A. (author)
Hydomako, R. (author)
Jonsell, Svante (author)
Stockholms universitet,Fysikum
Kurchaninov, L. (author)
Lambo, R. (author)
Madsen, N. (author)
Menary, S. (author)
Nolan, P. (author)
Olchanski, K. (author)
Olin, A. (author)
Povilus, A. (author)
Pusa, P. (author)
Robicheaux, F. (author)
Sarid, E. (author)
Silveira, D. (author)
So, C. (author)
Storey, J. (author)
Thompson, R. (author)
van der Werf, D. (author)
Wilding, D. (author)
Wurtele, J. (author)
Yamazaki, Y. (author)
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 (creator_code:org_t)
2011-04-19
2011
English.
In: Hyperfine Interactions. - : Springer Science and Business Media LLC. - 0304-3843 .- 1572-9540. ; 199:1, s. 39-48
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Spectroscopy of antihydrogen has the potential to yield high-precision tests of the CPT theorem and shed light on the matter-antimatter imbalance in the Universe. The ALPHA antihydrogen trap at CERN’s Antiproton Decelerator aims to prepare a sample of antihydrogen atoms confined in an octupole-based Ioffe trap and to measure the frequency of several atomic transitions. We describe our techniques to directly measure the antiproton temperature and a new technique to cool them to below 10 K. We also show how our unique position-sensitive annihilation detector provides us with a highly sensitive method of identifying antiproton annihilations and effectively rejecting the cosmic-ray background.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

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