Spectroscopy of HD+: Proton Charge Radius and the Rydberg Constant

2020 ◽  
Vol 51 (4) ◽  
pp. 690-696
Author(s):  
V. I. Korobov
2018 ◽  
Author(s):  
N. Kolachevsky ◽  
A. Beyer ◽  
L. Maisenbacher ◽  
A. Matveev ◽  
R. Pohl ◽  
...  

2011 ◽  
Vol 89 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Randolf Pohl ◽  
Aldo Antognini ◽  
François Nez ◽  
Fernando D. Amaro ◽  
François Biraben ◽  
...  

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.


2015 ◽  
Vol T165 ◽  
pp. 014030 ◽  
Author(s):  
Axel Beyer ◽  
Lothar Maisenbacher ◽  
Ksenia Khabarova ◽  
Arthur Matveev ◽  
Randolf Pohl ◽  
...  

Nature ◽  
2019 ◽  
Vol 575 (7781) ◽  
pp. 147-150 ◽  
Author(s):  
W. Xiong ◽  
A. Gasparian ◽  
H. Gao ◽  
D. Dutta ◽  
M. Khandaker ◽  
...  

2011 ◽  
Vol 107 (1) ◽  
Author(s):  
Brian Batell ◽  
David McKeen ◽  
Maxim Pospelov

2007 ◽  
Vol 59 (1) ◽  
pp. 358-360
Author(s):  
S. Rathi ◽  
I. Pysmenetska ◽  
P. von Neumann-Cosel ◽  
A. Richter ◽  
G. Schrieder ◽  
...  

2019 ◽  
Author(s):  
Nassim Haramein

We consider the latest results of the measurement of the charge radius of the proton utilizing laser spectroscopy of muonic hydrogen published in Science on January 25, 2013 by an international team lead by Aldo Antognini and carried out at the Paul Scherrer Institute Proton Accelerator. Given the new charge radius measurement, we compute the proton mass utilizing our generalized holographic approach and find that our result is now within 0.00072x10e-24 g of the 2010-CODATA value of the proton rest mass. Our predicted charge radius is now within 0.00036x10e-13 cm and remains within one standard deviation of the new measurement.


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