Systematic study of the decay rates of antiprotonic helium states

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

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Using the laser spectroscopic method, the study of decay rates of antiprotonic helium states was carried out. The magnitude of decay rates, their relation with the transition multipolarity was compared with the theoretical calculations. The decay rates of some of its short-lived states for which the Auger rates were much larger than their radiative decay rates were also determined. A sharp peak was observed in the delayed annihilation time spectrum, the intensity of which was proportional to the number of antiproton annihilation induced by the laser pulse.

Original languageEnglish
JournalPhysical Review A
Volume70
Issue number1
DOIs
Publication statusPublished - Jul 2004

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decay rates
helium
antiprotons
lasers
pulses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Yamaguchi, H., Hayano, R. S., Ishikawa, T., Sakaguchi, J., Widmann, E., Eades, J., ... Yamazaki, T. (2004). Systematic study of the decay rates of antiprotonic helium states. Physical Review A, 70(1). https://doi.org/10.1103/PhysRevA.70.012501

Systematic study of the decay rates of antiprotonic helium states. / Yamaguchi, H.; Hayano, R. S.; Ishikawa, T.; Sakaguchi, J.; Widmann, E.; Eades, J.; Hori, M.; Torii, H. A.; Juhász, B.; Horváth, D.; Yamazaki, T.

In: Physical Review A, Vol. 70, No. 1, 07.2004.

Research output: Contribution to journalArticle

Yamaguchi, H, Hayano, RS, Ishikawa, T, Sakaguchi, J, Widmann, E, Eades, J, Hori, M, Torii, HA, Juhász, B, Horváth, D & Yamazaki, T 2004, 'Systematic study of the decay rates of antiprotonic helium states', Physical Review A, vol. 70, no. 1. https://doi.org/10.1103/PhysRevA.70.012501
Yamaguchi H, Hayano RS, Ishikawa T, Sakaguchi J, Widmann E, Eades J et al. Systematic study of the decay rates of antiprotonic helium states. Physical Review A. 2004 Jul;70(1). https://doi.org/10.1103/PhysRevA.70.012501
Yamaguchi, H. ; Hayano, R. S. ; Ishikawa, T. ; Sakaguchi, J. ; Widmann, E. ; Eades, J. ; Hori, M. ; Torii, H. A. ; Juhász, B. ; Horváth, D. ; Yamazaki, T. / Systematic study of the decay rates of antiprotonic helium states. In: Physical Review A. 2004 ; Vol. 70, No. 1.
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