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Jeffrey S. Hangst

Antihydrogen detection in ALPHA

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

  • R. Hydomako, University of Calgary
  • ,
  • G.B. Andresen
  • M.D. Ashkezari, Simon Fraser University
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  • M. Baquero-Ruiz, University of California
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  • W. Bertsche, Swansea University
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  • E. Butler, CERN
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  • P.D. Bowe, Danmark
  • C.L. Cesar, Universidade Federal do Rio de Janeiro
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  • S. Chapman, University of California
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  • M. Charlton, Swansea University
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  • J. Fajans, University of California
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  • T. Friesen, University of Calgary
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  • M.C. Fujiwara, University of Calgary
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  • D.R. Gill, TRIUMF
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  • J.S. Hangst
  • W.N. Hardy, University of British Columbia
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  • R.S. Hayano, University of Tokyo
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  • M.E. Hayden, Simon Fraser University
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  • A.J. Humphries, Swansea University
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  • S. Jonsell, Stockholm University
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  • L. Kurchaninov, TRIUMF
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  • N. Madsen, Swansea University
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  • S. Menary, York University
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  • P. Nolan, University of Liverpool
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  • K. Olchanski, TRIUMF
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  • A. Olin, TRIUMF
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  • A. Povilus, University of California
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  • P. Pusa, University of Liverpool
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  • F. Robicheaux, Auburn University
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  • E. Sarid, NRCN-Nuclear Research Center Negev
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  • D.M. Silveira, RIKEN Advanced Science Institute
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  • C. So, University of California
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  • J.W. Storey, TRIUMF
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  • R.I. Thompson, University of Calgary
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  • D.P. van der Werf, Swansea University
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  • J.S. Wurtele, University of California
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  • Y. Yamazaki, RIKEN Advanced Science Institute
The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using this device, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria.
OriginalsprogEngelsk
TidsskriftHyperfine Interactions
Vol/bind212
Nummer1-3
Sider (fra-til)91-99
Antal sider9
ISSN0304-3843
DOI
StatusUdgivet - 1 dec. 2012

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