dorsal/arxiv
View SchemaHyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method
| Authors | E. Widmann, R. S. Hayano, T. Ishikawa, J. Sakaguchi, T. Tasaki, H. Yamaguchi, J. Eades, M. Hori, H. A. Torii, B. Juhász, D. Horváth, T. Yamazaki |
|---|---|
| Categories | |
| ArXiv ID | physics/0207059 |
| URL | https://arxiv.org/abs/physics/0207059 |
| DOI | 10.1103/PhysRevLett.89.243402 |
| Journal | Phys. Rev. Lett. 89 (2002) 243402 |
Abstract
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 due to 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 $\nu_{\text HF}^+ =12.89596 \pm 0.00034$ GHz and $\nu_{\text HF}^- =12.92467 \pm 0.00029$ GHz agree with recent theoretical calculations on a level of $ 6 \times10^{-5}$.
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"abstract": "Using a newly developed laser-microwave-laser resonance method, we observed a\npair of microwave transitions between hyperfine levels of the $(n,L)=(37,35)$\nstate of antiprotonic helium. This experiment confirms the quadruplet hyperfine\nstructure due to the interaction of the antiproton orbital angular momentum,\nthe electron spin and the antiproton spin as predicted by Bakalov and Korobov.\nThe measured frequencies of $\\nu_{\\text HF}^+ =12.89596 \\pm 0.00034$ GHz and\n$\\nu_{\\text HF}^- =12.92467 \\pm 0.00029$ GHz agree with recent theoretical\ncalculations on a level of $ 6 \\times10^{-5}$.",
"arxiv_id": "physics/0207059",
"authors": [
"E. Widmann",
"R. S. Hayano",
"T. Ishikawa",
"J. Sakaguchi",
"T. Tasaki",
"H. Yamaguchi",
"J. Eades",
"M. Hori",
"H. A. Torii",
"B. Juh\u00e1sz",
"D. Horv\u00e1th",
"T. Yamazaki"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.89.243402",
"journal_ref": "Phys. Rev. Lett. 89 (2002) 243402",
"title": "Hyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method",
"url": "https://arxiv.org/abs/physics/0207059"
},
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