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High-precision structural studies of the antiprotonic helium atom p-|<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Am</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:…

T. Yamazaki,E. Widmann,J. Eades,M. Kumakura,N. Morita,H. A. Torii,M. Hori,Takashi Ishikawa,F. E. Maas,H. Tamura,R. S. Hayano,I. Sugai,Yoshio Fujita,B. Ketzer,H. Daniel,F. J. Hartmann,M. Hasinoff,Randolf Pohl,Robert Schmidt,T. von Egidy,Dezső Horváth

Physics

Metastability

Atomic physics

1997

Very weak laser resonances of unfavored transitions (n,l)\ensuremath{\rightarrow}(n+1,l-1) have been observed in metastable p-|${\mathrm{Am}}^{4}$${\mathrm{He}}^{+}$ atoms by using a pulsed antiproton beam. The observed wavelengths (713.578\ifmmode\pm\else\textpm\fi{}0.006 nm for l=34 and 726.095\ifmmode\pm\else\textpm\fi{}0.004 nm for l=35), as well as those of the known favoured transitions, are to a few ppm accounted for by a recent variational calculation of Korobov [Phys. Rev. A 54, R1749 (1996); and (unpublished)] which includes the relativistic correction to the motion of the electron.

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“High-precision structural studies of the antiprotonic helium atom p-|<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Am</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:…” is a paper by T. Yamazaki E. Widmann J. Eades M. Kumakura N. Morita H. A. Torii M. Hori Takashi Ishikawa F. E. Maas H. Tamura R. S. Hayano I. Sugai Yoshio Fujita B. Ketzer H. Daniel F. J. Hartmann M. Hasinoff Randolf Pohl Robert Schmidt T. von Egidy Dezső Horváth published in 1997. It has an Open Access status of “green”. You can read and download a PDF Full Text of this paper here.