Fine and hyperfine structure of antiprotonic helium
نویسندگان
چکیده
منابع مشابه
Hyperfine Structure Measurements of Antiprotonic Helium and Antihydrogen
This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of α-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may – through comparison with these theories ...
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E-mail: [email protected] 2 Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 3 KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, PO Box 49, Hungary 4 Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany. 5 Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001 Debrecen, ...
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We report the initial results from a systematic study of the hyperfine (HF) structure of antiprotonic helium (n, l) = (37, 35) carried out at the Antiproton Decelerator (AD) at CERN. We performed a laser-microwave-laser resonance spectroscopy using a continuous wave (cw) pulse-amplified laser system and microwave cavity to measure the HF transition frequencies. Improvements in the spectral line...
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Recent progress in the spectroscopy of antiprotonic helium has allowed for measuring the separation between components of the hyperfine structure (HFS) of the (37, 35) metastable states with an accuracy of 300 MHz, equivalent to a relative accuracy of 3.10. The analysis of the uncertainties of the available theoretical results on the antiprotonic helium HFS shows that the accuracy of the value ...
متن کاملPreliminary Results from Recent Measurements of the Antiprotonic Helium Hyperfine Structure
We report on preliminary results from a systematic study of the hyperfine (HF) structure of antiprotonic helium. This precise measurement which was commenced in 2006, has now been completed. Our initial analysis shows no apparent density or power dependence and therefore the results can be averaged. The statistical error of the observable M1 transitions is a factor of 60 smaller than that of th...
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ژورنال
عنوان ژورنال: Hyperfine Interactions
سال: 1996
ISSN: 0304-3834,1572-9540
DOI: 10.1007/bf02227660