Primary populations of metastable antiprotonic 4He and 3He atoms

M. Hori, J. Eades, R. S. Hayano, T. Ishikawa, J. Sakaguchi, T. Tasaki, E. Widmann, H. Yamaguchi, H. A. Torii, B. Juhász, D. Horváth, T. Yamazaki

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Abstract

Initial population distributions of metastable antiprotonic 4He and 3He atoms over principal and angular momentum quantum numbers were investigated using laser spectroscopy. The total fractions of antiprotons captured into the metastable states of the atoms were deduced. Cascade calculations were performed using the measure populations to reproduce the delayed annihilation time spectrum. Results showed agreement between the simulated and measured spectra.

Original languageEnglish
Article number093401
Pages (from-to)934011-934014
Number of pages4
JournalPhysical review letters
Volume89
Issue number9
Publication statusPublished - Aug 26 2002

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hori, M., Eades, J., Hayano, R. S., Ishikawa, T., Sakaguchi, J., Tasaki, T., Widmann, E., Yamaguchi, H., Torii, H. A., Juhász, B., Horváth, D., & Yamazaki, T. (2002). Primary populations of metastable antiprotonic 4He and 3He atoms. Physical review letters, 89(9), 934011-934014. [093401].