Hyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method
Using a newly developed laser-microwave-laser resonance method, we observed a pair of microwave transitions between hyperfine levels of the (n,L)=(37,35) state of antiprotonic helium. This experiment confirms the quadruplet hyperfine structure arising from the interaction of the antiproton orbital a...
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| Veröffentlicht in: | Physical review letters 2002-12, Vol.89 (24), p.243402-243402, Article 243402 |
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| container_title | Physical review letters |
| container_volume | 89 |
| creator | Widmann, E Eades, J Ishikawa, T Sakaguchi, J Tasaki, T Yamaguchi, H Hayano, R S Hori, M Torii, H A Juhász, B Horváth, D Yamazaki, T |
| description | Using a newly developed laser-microwave-laser resonance method, we observed a pair of microwave transitions between hyperfine levels of the (n,L)=(37,35) state of antiprotonic helium. This experiment confirms the quadruplet hyperfine structure arising from the interaction of the antiproton orbital angular momentum, the electron spin and the antiproton spin as predicted by Bakalov and Korobov. The measured frequencies of nu(+)(HF)=12.895 96+/-0.000 34 GHz and nu(-)(HF)=12.924 67+/-0.000 29 GHz agree with recent theoretical calculations on a level of 6x10(-5). |
| doi_str_mv | 10.1103/physrevlett.89.243402 |
| format | Article |
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This experiment confirms the quadruplet hyperfine structure arising from the interaction of the antiproton orbital angular momentum, the electron spin and the antiproton spin as predicted by Bakalov and Korobov. 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| title | Hyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method |
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