Precision spectroscopy of atomic helium
نویسندگان
چکیده
منابع مشابه
Precision spectroscopy of antiprotonic helium
Antiprotonic helium, a neutral exotic three-body system consisting of a helium nucleus, an electron and an antiproton, is being studied at the Antiproton Decelerator of CERN by the ASAUCSA collaboration. Using laser spectroscopy of the energy levels of the antiproton in this system and comparison to theory, a value of the antiproton-to-electron mass ratio with an error of 3 ppb could be obtaine...
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The study of pHe atomcules carried out by the PS205 collaboration at CERN-LEAR revealed many facets of this unusual 3-body system. Its structure was rst examined using a laser spectroscopy technique where it could be shown that the antiprotons occupy highly excited metastable states with principal quantum number n = q (m=M) and orbital angular momentum quantum number l = n 1 as predicted by the...
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ژورنال
عنوان ژورنال: National Science Review
سال: 2020
ISSN: 2095-5138,2053-714X
DOI: 10.1093/nsr/nwaa216