Direct detection of antihydrogen atoms using a BGO crystal

Y. Nagata, N. Kuroda, Miki Otsuka, M. Leali, E. Lodi-Rizzini, V. Mascagna, M. Tajima, H. A. Torii, N. Zurlo, Y. Matsuda, L. Venturelli, Y. Yamazaki

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The ASACUSA collaboration has developed a detector consisting of a large size BGO crystal to detect an atomic antihydrogen beam, and performed the direct detection of antihydrogen atoms. Energy spectra from antihydrogen annihilation on the BGO crystal are discussed in comparison to simulation results from the GEANT4 toolkit. Background mainly originating from cosmic rays were strongly suppressed by analyzing the energy deposited in the BGO and requiring a multiplicity of charged pions. Thus antihydrogen events were identified.

Original languageEnglish
Pages (from-to)153-159
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume840
DOIs
Publication statusPublished - 2016 Dec 21
Externally publishedYes

Fingerprint

Atomic beams
Atoms
Crystals
Cosmic rays
atomic beams
crystals
atoms
cosmic rays
energy spectra
pions
Detectors
detectors
simulation
energy

Keywords

  • Antihydrogen
  • Antimatter
  • Cosmic ray background suppression
  • Detector
  • Inorganic scintillator

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Direct detection of antihydrogen atoms using a BGO crystal. / Nagata, Y.; Kuroda, N.; Otsuka, Miki; Leali, M.; Lodi-Rizzini, E.; Mascagna, V.; Tajima, M.; Torii, H. A.; Zurlo, N.; Matsuda, Y.; Venturelli, L.; Yamazaki, Y.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 840, 21.12.2016, p. 153-159.

Research output: Contribution to journalArticle

Nagata, Y, Kuroda, N, Otsuka, M, Leali, M, Lodi-Rizzini, E, Mascagna, V, Tajima, M, Torii, HA, Zurlo, N, Matsuda, Y, Venturelli, L & Yamazaki, Y 2016, 'Direct detection of antihydrogen atoms using a BGO crystal', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 840, pp. 153-159. https://doi.org/10.1016/j.nima.2016.10.019
Nagata, Y. ; Kuroda, N. ; Otsuka, Miki ; Leali, M. ; Lodi-Rizzini, E. ; Mascagna, V. ; Tajima, M. ; Torii, H. A. ; Zurlo, N. ; Matsuda, Y. ; Venturelli, L. ; Yamazaki, Y. / Direct detection of antihydrogen atoms using a BGO crystal. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2016 ; Vol. 840. pp. 153-159.
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AU - Mascagna, V.

AU - Tajima, M.

AU - Torii, H. A.

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