scholarly journals Laser spectroscopy of light muonic atoms and the nuclear charge radii

2021 ◽  
Author(s):  
Aldo Antognini ◽  
Franz Kottmann ◽  
Randolf Pohl
Keyword(s):  
Nuclear Charge ◽  
Energy Levels ◽  
Complex Structure ◽  
Finite Size ◽  
Bound State ◽  
Muonic Hydrogen ◽  
Energy Splitting ◽  
Negative Muon ◽  
Charge Radii ◽  
Muonic Atoms

The energy levels of hydrogen-like atomic systems are shifted slightly by the complex structure of the nucleus, in particular by the finite size of the nucleus. These energy shifts are vastly magnified in muonic atoms and ions, i.e. the hydrogen-like systems formed by a negative muon and a nucleus. By measuring the 2S-2P energy splitting in muonic hydrogen, muonic deuterium and muonic helium, we have been able to deduce the p, d, ^33He and ^44He nuclear charge radii to an unprecedented accuracy. These radii provide benchmarks for hadron and nuclear theories, lead to precision tests of bound-state QED in regular atoms and to a better determination of the Rydberg constant.

Systematics of nuclear charge radii of the stable molybdenum isotopes from muonic atoms

1980 ◽  
Vol 333 (3) ◽  
pp. 333-342 ◽  
Author(s):  
L. Schellenberg ◽  
B. Robert-Tissot ◽  
K. Käser ◽  
L.A. Schaller ◽  
H. Schneuwly ◽  
...  
Keyword(s):  
Nuclear Charge ◽  
Charge Radii ◽  
Muonic Atoms ◽  
Molybdenum Isotopes

Nuclear charge radii of the Te isotopes from muonic atoms

1989 ◽  
Vol 39 (1) ◽  
pp. 195-208 ◽  
Author(s):  
E. B. Shera ◽  
M. V. Hoehn ◽  
G. Fricke ◽  
G. Mallot
Keyword(s):  
Nuclear Charge ◽  
Charge Radii ◽  
Muonic Atoms

scholarly journals Nuclear charge radii from X-ray transitions in muonic atoms of carbon, nitrogen and oxygen

1974 ◽  
Vol 219 (1) ◽  
pp. 29-38 ◽  
Author(s):  
T. Dubler ◽  
L. Schellenberg ◽  
H. Schneuwly ◽  
R. Engfer ◽  
J.L. Vuilleumier ◽  
...  
Keyword(s):  
Nuclear Charge ◽  
X Ray ◽  
Charge Radii ◽  
Muonic Atoms

The Lamb shift in muonic hydrogenThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at École de Physique, les Houches, France, 30 May – 4 June, 2010.

2011 ◽  
Vol 89 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Randolf Pohl ◽  
Aldo Antognini ◽  
François Nez ◽  
Fernando D. Amaro ◽  
François Biraben ◽  
...  
Keyword(s):  
Charge Radius ◽  
Lamb Shift ◽  
Finite Size ◽  
Muonic Hydrogen ◽  
Energy Splitting ◽  
Atomic Systems ◽  
Proton Charge ◽  
Proton Charge Radius ◽  
Rydberg Constant ◽  
Better Than

The long quest for a measurement of the Lamb shift in muonic hydrogen is over. Last year we measured the 2S 1/2F=1 –2P 3/2F=2 energy splitting (Pohl et al., Nature, 466, 213 (2010)) in μp with an experimental accuracy of 15 ppm, twice better than our proposed goal. Using current QED calculations of the fine, hyperfine, QED, and finite size contributions, we obtain a root-mean-square proton charge radius of rp = 0.841 84 (67) fm. This value is 10 times more precise, but 5 standard deviations smaller, than the 2006 CODATA value of rp. The origin of this discrepancy is not known. Our measurement, together with precise measurements of the 1S–2S transition in regular hydrogen and deuterium, gives improved values of the Rydberg constant, R∞ = 10 973 731.568 160 (16) m–1 and the rms charge radius of the deuteron rd = 2.128 09 (31) fm.

Nuclear charge radii of the tin isotopes from muonic atoms

1990 ◽  
Vol 42 (1) ◽  
pp. 182-189 ◽  
Author(s):  
C. Piller ◽  
C. Gugler ◽  
R. Jacot-Guillarmod ◽  
L. A. Schaller ◽  
L. Schellenberg ◽  
...  
Keyword(s):  
Nuclear Charge ◽  
Charge Radii ◽  
Muonic Atoms

scholarly journals Nuclear structure with radioactive muonic atoms

2018 ◽  
Vol 193 ◽  
pp. 04014 ◽  
Author(s):  
A. Adamczak ◽  
A. Antognini ◽  
N. Berger ◽  
T.E. Cocolios ◽  
R. Dressler ◽  
...  
Keyword(s):  
Nuclear Structure ◽  
Nuclear Charge ◽  
High Energy ◽  
Muonic Atom ◽  
Muon Beam ◽  
Precise Determination ◽  
Radioactive Isotopes ◽  
X Rays ◽  
Charge Radii ◽  
Muonic Atoms

Muonic atoms have been used to extract the most accurate nuclear charge radii based on the detection of X-rays from the muonic cascades. Most stable and a few unstable isotopes have been investigated with muonic atom spectroscopy techniques. A new research project recently started at the Paul Scherrer Institut aims to extend the highresolution muonic atom spectroscopy for the precise determination of nuclear charge radii and other nuclear structure properties of radioactive isotopes. The challenge to combine the high-energy muon beam with small quantity of stopping mass is being addressed by developing the concept of stopping the muon in a high-density, a high-pressure hydrogen cell and subsequent transfer of the muon to the element of interest. Status and perspectives of the project will be presented.

Nuclear charge radii of the even sulphur isotopesS32,S34, andS36and ofP31using muonic atoms

1985 ◽  
Vol 31 (3) ◽  
pp. 1007-1011 ◽  
Author(s):  
L. A. Schaller ◽  
D. A. Barandao ◽  
P. Bergem ◽  
M. Boschung ◽  
T. Q. Phan ◽  
...  
Keyword(s):  
Nuclear Charge ◽  
Charge Radii ◽  
Muonic Atoms
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