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Alternative method for reconstruction of antihydrogen annihilation vertices

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Abstract

The ALPHA experiment, located at CERN, aims to compare the properties of antihydrogen atoms with those of hydrogen atoms. The neutral antihydrogen atoms are trapped using an octupole magnetic trap. The trap region is surrounded by a three layered silicon detector used to reconstruct the antiproton annihilation vertices. This paper describes a method we have devised that can be used for reconstructing annihilation vertices with a good resolution and is more efficient than the standard method currently used for the same purpose.

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References

  1. Andresen, G.B., et al. (ALPHA Collaboration): Search for trapped antihydrogen. Phys. Lett. B 695, 95–104 (2011)

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Authors and Affiliations

  1. Department of Physics and Astronomy, York University, Toronto, ON, M3J 1P3, Canada

    C. Amole & S. Menary

  2. Department of Physics, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada

    M. D. Ashkezari & M. E. Hayden

  3. Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark

    G. B. Andresen, P. D. Bowe & J. S. Hangst

  4. Department of Physics, University of California, Berkeley, CA, 94720-7300, USA

    M. Baquero-Ruiz, S. Chapman, J. Fajans, A. Povilus, C. So & J. S. Wurtele

  5. Department of Physics, Swansea University, Swansea, SA2 8PP, UK

    W. Bertsche, M. Charlton, A. Deller, S. Eriksson, A. J. Humphries, N. Madsen & D. P. van der Werf

  6. Physics Department, CERN, 1211, Geneva 23, Switzerland

    E. Butler

  7. Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil

    C. L. Cesar

  8. Department of Physics and Astronomy, University of Calgary, Calgary, AB, T2N 1N4, Canada

    T. Friesen, M. C. Fujiwara, R. Hydomako & R. I. Thompson

  9. TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada

    M. C. Fujiwara, D. R. Gill, L. Kurchaninov, K. Olchanski, A. Olin & J. W. Storey

  10. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada

    A. Gutierrez & W. N. Hardy

  11. Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan

    R. S. Hayano

  12. Fysikum, Stockholm University, 10609, Stockholm, Sweden

    S. Jonsell

  13. Department of Physics, University of Liverpool, Liverpool, L69 7ZE, UK

    P. Nolan & P. Pusa

  14. Department of Physics, Auburn University, Auburn, AL, 36849-5311, USA

    F. Robicheaux

  15. Department of Physics, NRCN-Nuclear Research Center Negev, Beer Sheva, 84190, Israel

    E. Sarid

  16. Atomic Physics Laboratory, RIKEN Advanced Science Institute, Wako, Saitama, 351-0198, Japan

    D. M. Silveira & Y. Yamazaki

  17. Graduate School of Arts and Sciences, University of Tokyo, Tokyo, 153-8902, Japan

    D. M. Silveira & Y. Yamazaki

Authors
  1. C. Amole
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  2. M. D. Ashkezari
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  3. G. B. Andresen
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  4. M. Baquero-Ruiz
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  5. W. Bertsche
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  6. P. D. Bowe
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  7. E. Butler
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  8. C. L. Cesar
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  9. S. Chapman
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  10. M. Charlton
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  11. A. Deller
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  12. S. Eriksson
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  13. J. Fajans
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  14. T. Friesen
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  15. M. C. Fujiwara
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  16. D. R. Gill
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  17. A. Gutierrez
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  18. J. S. Hangst
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  19. W. N. Hardy
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  20. R. S. Hayano
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  21. M. E. Hayden
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  22. A. J. Humphries
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  23. R. Hydomako
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  24. S. Jonsell
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  25. L. Kurchaninov
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  26. N. Madsen
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  27. S. Menary
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  28. P. Nolan
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  29. K. Olchanski
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  30. A. Olin
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  31. A. Povilus
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  32. P. Pusa
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  33. F. Robicheaux
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  34. E. Sarid
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  35. D. M. Silveira
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  36. C. So
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  37. J. W. Storey
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  38. R. I. Thompson
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  39. D. P. van der Werf
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  40. J. S. Wurtele
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  41. Y. Yamazaki
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Consortia

ALPHA Collaboration

Corresponding author

Correspondence to C. Amole.

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Amole, C., Ashkezari, M.D., Andresen, G.B. et al. Alternative method for reconstruction of antihydrogen annihilation vertices. Hyperfine Interact 212, 101–107 (2012). https://doi.org/10.1007/s10751-012-0588-5

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  • DOI: https://doi.org/10.1007/s10751-012-0588-5

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