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Jeffrey S. Hangst

Antihydrogen annihilation reconstruction with the ALPHA silicon detector

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

  • G.B. Andresen
  • M.D. Ashkezari, Simon Fraser University
  • ,
  • W. Bertsche, Swansea University
  • ,
  • P.D. Bowe, Danmark
  • E. Butler, CERN
  • ,
  • C.L. Cesar, Universidade Federal do Rio de Janeiro
  • ,
  • S. Chapman, University of California
  • ,
  • M. Charlton, Swansea University
  • ,
  • A. Deller, Swansea University
  • ,
  • S. Eriksson, Swansea University
  • ,
  • J. Fajans, University of California
  • ,
  • T. Friesen, University of Calgary
  • ,
  • M.C. Fujiwara, TRIUMF
  • ,
  • D.R. Gill, TRIUMF
  • ,
  • A. Gutierrez, University of British Columbia
  • ,
  • J.S. Hangst
  • W.N. Hardy, University of British Columbia
  • ,
  • M.E. Hayden, Simon Fraser University
  • ,
  • R.S. Hayano, University of Tokyo
  • ,
  • A.J. Humphries, Swansea University
  • ,
  • R. Hydomako, University of Calgary
  • ,
  • S. Jonsell, Swansea University
  • ,
  • L.V. Jørgensen, Swansea University
  • ,
  • L. Kurchaninov, TRIUMF
  • ,
  • N. Madsen, Swansea University
  • ,
  • S. Menary, York University
  • ,
  • P. Nolan, University of Liverpool
  • ,
  • K. Olchanski, TRIUMF
  • ,
  • A. Olin, TRIUMF
  • ,
  • A. Povilus, University of California
  • ,
  • P. Pusa, University of Liverpool
  • ,
  • E. Sarid, NRCN-Nuclear Research Center Negev
  • ,
  • S. Seif El Nasr, CERN
  • ,
  • D.M. Silveira, RIKEN
  • ,
  • C. So, University of California
  • ,
  • J.W. Storey, Zürich University
  • ,
  • R.I. Thompson, University of Calgary
  • ,
  • D.P. Van Der Werf, Swansea University
  • ,
  • Y. Yamazaki, RIKEN
The ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. This detector, an array of double-sided silicon microstrip detector modules arranged in three concentric cylindrical tiers, is sensitive to the passage of charged particles resulting from antiproton annihilation. This article describes the method used to reconstruct the annihilation location and to distinguish the annihilation signal from the cosmic ray background. Recent experimental results using this detector are outlined.
OriginalsprogEngelsk
TidsskriftNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Vol/bind684
Sider (fra-til)73-81
Antal sider9
ISSN0168-9002
DOI
StatusUdgivet - 21 aug. 2012

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