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Phys. Rev. A 63, 012518 (2000) [6 pages]

Coupled rearrangement channel calculation of the fine and hyperfine structures of the antiprotonic helium atom

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Nobuhiro Yamanaka1,*, Yasushi Kino2,3,†, Hiroshi Kudo2, and Masayasu Kamimura4
1Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
2Department of Chemistry, Tohoku University, Sendai 980-8578, Japan
3Department of Quantum Chemistry, Uppsala University, Box 518, 75120 Uppsala, Sweden
4Department of Physics, Kyushu University, Fukuoka 812-8581, Japan

Received 1 July 2000; published 13 December 2000

We precisely calculate the fine and hyperfine structure splittings of the (v,J)=(1,35) state in the antiprotonic helium atom, where v is the vibrational quantum number and J is the total orbital angular momentum. The coupled rearrangement channel method is employed to efficiently describe correlation effects in the three-body system with atomic and molecular characters. An accuracy of better than α2≈50ppm has been achieved. The result obtained is in good agreement with the previous calculation within ∼200 ppm. We also examine the correlation effects, in particular orbital polarization effects.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.012518
DOI:
10.1103/PhysRevA.63.012518
PACS:
36.10.-k, 31.30.Gs, 31.30.Jv

*Electronic address: yam@nucl.phys.u-tokyo.ac.jp

†Electronic address: kino@mail.cc.tohoku.ac.jp

 
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