Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms

F. E. Maas; R. S. Hayano; T. Ishikawa; H. Tamura; H. A. Torii; N. Morita; T. Yamazaki; I. Sugai; K. Nakayoshi; F. J. Hartmann; H. Daniel; T. Von Egidy; B. Ketzer; A. Niestroj; S. Schmid; W. Schmid; D. Horváth; J. Eades; E. Widmann

doi:10.1103/PhysRevA.52.4266

Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms

F. E. Maas, R. S. Hayano, T. Ishikawa, H. Tamura, H. A. Torii, N. Morita, T. Yamazaki, I. Sugai, K. Nakayoshi, F. J. Hartmann, H. Daniel, T. Von Egidy, B. Ketzer, A. Niestroj, S. Schmid, W. Schmid, D. Horváth, J. Eades, E. Widmann

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Abstract

A laser-induced resonant transition in metastable antiprotonic helium atoms has been found at a wavelength of 470.724±0.002 nm and assigned to the transition (n,l)=(37,34)→(36,33). From the time evolution of the laser resonance intensity, the decay rate of the (37,34) state was determined to be 1.17±0.09 μs-1, about 60% larger than the theoretical radiative decay rate. The sum of the initial populations in the v=n-l-1=2 decay chain was 23±4% of the total number of metastable atoms formed.

Original language	English
Pages (from-to)	4266-4269
Number of pages	4
Journal	Physical Review A
Volume	52
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.52.4266
Publication status	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.52.4266

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Maas, F. E., Hayano, R. S., Ishikawa, T., Tamura, H., Torii, H. A., Morita, N., Yamazaki, T., Sugai, I., Nakayoshi, K., Hartmann, F. J., Daniel, H., Von Egidy, T., Ketzer, B., Niestroj, A., Schmid, S., Schmid, W., Horváth, D., Eades, J., & Widmann, E. (1995). Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms. Physical Review A, 52(5), 4266-4269. https://doi.org/10.1103/PhysRevA.52.4266

Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms. / Maas, F. E.; Hayano, R. S.; Ishikawa, T.; Tamura, H.; Torii, H. A.; Morita, N.; Yamazaki, T.; Sugai, I.; Nakayoshi, K.; Hartmann, F. J.; Daniel, H.; Von Egidy, T.; Ketzer, B.; Niestroj, A.; Schmid, S.; Schmid, W.; Horváth, D.; Eades, J.; Widmann, E.

In: Physical Review A, Vol. 52, No. 5, 1995, p. 4266-4269.

Research output: Contribution to journal › Article › peer-review

Maas, FE, Hayano, RS, Ishikawa, T, Tamura, H, Torii, HA, Morita, N, Yamazaki, T, Sugai, I, Nakayoshi, K, Hartmann, FJ, Daniel, H, Von Egidy, T, Ketzer, B, Niestroj, A, Schmid, S, Schmid, W, Horváth, D, Eades, J & Widmann, E 1995, 'Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms', Physical Review A, vol. 52, no. 5, pp. 4266-4269. https://doi.org/10.1103/PhysRevA.52.4266

Maas, F. E. ; Hayano, R. S. ; Ishikawa, T. ; Tamura, H. ; Torii, H. A. ; Morita, N. ; Yamazaki, T. ; Sugai, I. ; Nakayoshi, K. ; Hartmann, F. J. ; Daniel, H. ; Von Egidy, T. ; Ketzer, B. ; Niestroj, A. ; Schmid, S. ; Schmid, W. ; Horváth, D. ; Eades, J. ; Widmann, E. / Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms. In: Physical Review A. 1995 ; Vol. 52, No. 5. pp. 4266-4269.

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title = "Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms",

abstract = "A laser-induced resonant transition in metastable antiprotonic helium atoms has been found at a wavelength of 470.724±0.002 nm and assigned to the transition (n,l)=(37,34)→(36,33). From the time evolution of the laser resonance intensity, the decay rate of the (37,34) state was determined to be 1.17±0.09 μs-1, about 60% larger than the theoretical radiative decay rate. The sum of the initial populations in the v=n-l-1=2 decay chain was 23±4% of the total number of metastable atoms formed.",

author = "Maas, {F. E.} and Hayano, {R. S.} and T. Ishikawa and H. Tamura and Torii, {H. A.} and N. Morita and T. Yamazaki and I. Sugai and K. Nakayoshi and Hartmann, {F. J.} and H. Daniel and {Von Egidy}, T. and B. Ketzer and A. Niestroj and S. Schmid and W. Schmid and D. Horv{\'a}th and J. Eades and E. Widmann",

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AU - Maas, F. E.

AU - Hayano, R. S.

AU - Ishikawa, T.

AU - Tamura, H.

AU - Torii, H. A.

AU - Morita, N.

AU - Yamazaki, T.

AU - Sugai, I.

AU - Nakayoshi, K.

AU - Hartmann, F. J.

AU - Daniel, H.

AU - Von Egidy, T.

AU - Ketzer, B.

AU - Niestroj, A.

AU - Schmid, S.

AU - Schmid, W.

AU - Horváth, D.

AU - Eades, J.

AU - Widmann, E.

PY - 1995

Y1 - 1995

N2 - A laser-induced resonant transition in metastable antiprotonic helium atoms has been found at a wavelength of 470.724±0.002 nm and assigned to the transition (n,l)=(37,34)→(36,33). From the time evolution of the laser resonance intensity, the decay rate of the (37,34) state was determined to be 1.17±0.09 μs-1, about 60% larger than the theoretical radiative decay rate. The sum of the initial populations in the v=n-l-1=2 decay chain was 23±4% of the total number of metastable atoms formed.

AB - A laser-induced resonant transition in metastable antiprotonic helium atoms has been found at a wavelength of 470.724±0.002 nm and assigned to the transition (n,l)=(37,34)→(36,33). From the time evolution of the laser resonance intensity, the decay rate of the (37,34) state was determined to be 1.17±0.09 μs-1, about 60% larger than the theoretical radiative decay rate. The sum of the initial populations in the v=n-l-1=2 decay chain was 23±4% of the total number of metastable atoms formed.

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Laser-induced resonant transition at 470.724 nm in the v=n-l-1=2 cascade of metastable antiprotonic helium atoms

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